Variable names

  [1] "CONSENT. I am 18 years old or older. I am taking this survey voluntarily. I consent to all of the information that I provide being made public. "                                                                                                                                                                                                                             

  [2] "How old are you (years)?"                                                                                                                                                                                                                                                                                                                                                     

  [3] "What is your sex?"                                                                                                                                                                                                                                                                                                                                                            

  [4] "What is your marital status?"                                                                                                                                                                                                                                                                                                                                                 

  [5] "Do you read or post in any English-language internet forums or communities, such as Reddit, Facebook groups, or a stand-alone forum?"                                                                                                                                                                                                                                         

  [6] "Do you read or post in any internet forums that use a language OTHER THAN English? If so, what language do these forums use?"                                                                                                                                                                                                                                                 

  [7] "How is your health in general?"                                                                                                                                                                                                                                                                                                                                               

  [8] "The next question is about your height. In what units will you give the answer?"                                                                                                                                                                                                                                                                                              

  [9] "What is your height? (Use the units from the previous question.)"                                                                                                                                                                                                                                                                                                             

 [10] "The next question is about your weight. In what units will you give the answer?"                                                                                                                                                                                                                                                                                              

 [11] "What is your weight? (Use the units from the previous question.)"                                                                                                                                                                                                                                                                                                             

 [12] "Allergies. (Check all that apply.) [Allergic rhinitis / hay fever https://en.wikipedia.org/wiki/Allergic_rhinitis]"                                                                                                                                                                                                                                                           

 [13] "Allergies. (Check all that apply.) [Allergy to animals]"                                                                                                                                                                                                                                                                                                                      

 [14] "Allergies. (Check all that apply.) [Allergy to house dust mites https://en.wikipedia.org/wiki/House_dust_mite]"                                                                                                                                                                                                                                                               

 [15] "Allergies. (Check all that apply.) [Any other allergy https://en.wikipedia.org/wiki/Allergy]"                                                                                                                                                                                                                                                                                 

 [16] "If you checked anything above, what are the names of the actual conditions that you have?"                                                                                                                                                                                                                                                                                    

 [17] "Sexual dysfunction. (Check all that apply.) [Premature ejaculation (PE) https://en.wikipedia.org/wiki/Premature_ejaculation]"                                                                                                                                                                                                                                                 

 [18] "Sexual dysfunction. (Check all that apply.) [Lifelong premature ejaculation (PE) https://en.wikipedia.org/wiki/Premature_ejaculation]"                                                                                                                                                                                                                                        

 [19] "Sexual dysfunction. (Check all that apply.) [Erectile dysfunction (ED) / impotence https://en.wikipedia.org/wiki/Erectile_dysfunction]"                                                                                                                                                                                                                                       

 [20] "Sexual dysfunction. (Check all that apply.) [Dhat syndrome https://en.wikipedia.org/wiki/Dhat_syndrome]"                                                                                                                                                                                                                                                                      

 [21] "Sexual dysfunction. (Check all that apply.) [Post-coital tristesse (PCT) / post-coital dysphoria (PCD) https://en.wikipedia.org/wiki/Post-coital_tristesse]"                                                                                                                                                                                                                  

 [22] "Sexual dysfunction. (Check all that apply.) [Sexual headache / coital cephalalgia https://en.wikipedia.org/wiki/Sexual_headache]"                                                                                                                                                                                                                                             

 [23] "Sexual dysfunction. (Check all that apply.) [Any other sexual dysfunction https://en.wikipedia.org/wiki/Sexual_dysfunction]"                                                                                                                                                                                                                                                  

 [24] "If you checked anything above, what are the names of the actual conditions that you have?"                                                                                                                                                                                                                                                                                    

 [25] "Bowel disorders / diet issues. (Check all that apply.) [Issues with the gut-brain axis or vagus nerve https://en.wikipedia.org/wiki/Gut%E2%80%93brain_axis]"                                                                                                                                                                                                                  

 [26] "Bowel disorders / diet issues. (Check all that apply.) [Irritable bowel syndrome (IBS) https://en.wikipedia.org/wiki/Irritable_Bowel_Syndrome]"                                                                                                                                                                                                                               

 [27] "Bowel disorders / diet issues. (Check all that apply.) [Any other functional gastrointestinal disorder (FGIS) or bowel disorder https://en.wikipedia.org/wiki/Functional_gastrointestinal_disorder]"                                                                                                                                                                          

 [28] "Bowel disorders / diet issues. (Check all that apply.) [Undernutrition / Inadequate intake of food and nutrients https://en.wikipedia.org/wiki/List_of_types_of_malnutrition]"                                                                                                                                                                                                

 [29] "Bowel disorders / diet issues. (Check all that apply.) [Overnutrition / Excessive intake of food and nutrients https://en.wikipedia.org/wiki/List_of_types_of_malnutrition]"                                                                                                                                                                                                  

 [30] "Bowel disorders / diet issues. (Check all that apply.) [Any other type of malnutrition https://en.wikipedia.org/wiki/List_of_types_of_malnutrition]"                                                                                                                                                                                                                          

 [31] "If you checked anything above, what are the names of the actual conditions that you have?"                                                                                                                                                                                                                                                                                    

 [32] "Genital diseases. (Check all that apply.) [Prostatitis https://en.wikipedia.org/wiki/Prostatitis]"                                                                                                                                                                                                                                                                            

 [33] "Genital diseases. (Check all that apply.) [Benign prostatic hyperplasia (BPH) / prostate enlargement https://en.wikipedia.org/wiki/Benign_prostatic_hyperplasia]"                                                                                                                                                                                                             

 [34] "Genital diseases. (Check all that apply.) [Epididymitis https://en.wikipedia.org/wiki/Epididymitis]"                                                                                                                                                                                                                                                                          

 [35] "Genital diseases. (Check all that apply.) [Orchitis https://en.wikipedia.org/wiki/Orchitis]"                                                                                                                                                                                                                                                                                  

 [36] "Genital diseases. (Check all that apply.) [Any other genital disease https://en.wikipedia.org/wiki/List_of_ICD-9_codes_580%E2%80%93629:_diseases_of_the_genitourinary_system#Diseases_of_male_genital_organs_(600%E2%80%93608)]"                                                                                                                                              

 [37] "If you checked anything above, what are the names of the actual conditions that you have?"                                                                                                                                                                                                                                                                                    

 [38] "Endocrine diseases / hormone imbalance. (Check all that apply.) [Hyperthyroidism https://en.wikipedia.org/wiki/Hyperthyroidism]"                                                                                                                                                                                                                                              

 [39] "Endocrine diseases / hormone imbalance. (Check all that apply.) [Diabetes mellitus https://en.wikipedia.org/wiki/Diabetes_mellitus]"                                                                                                                                                                                                                                          

 [40] "Endocrine diseases / hormone imbalance. (Check all that apply.) [Any other endocrine disease / hormone imbalance https://en.wikipedia.org/wiki/Endocrine_disease]"                                                                                                                                                                                                            

 [41] "If you checked anything above, what are the names of the actual conditions that you have?"                                                                                                                                                                                                                                                                                    

 [42] "Mental disorders. (Check all that apply.) [Neurotransmitter imbalance https://en.wikipedia.org/wiki/Neurotransmitter]"                                                                                                                                                                                                                                                        

 [43] "Mental disorders. (Check all that apply.) [Anxiety disorder https://en.wikipedia.org/wiki/Anxiety_disorder]"                                                                                                                                                                                                                                                                  

 [44] "Mental disorders. (Check all that apply.) [Social anxiety disorder (SAD) https://en.wikipedia.org/wiki/Social_anxiety_disorder]"                                                                                                                                                                                                                                              

 [45] "Mental disorders. (Check all that apply.) [Major depressive disorder (MDD) / depression https://en.wikipedia.org/wiki/Major_depressive_disorder]"                                                                                                                                                                                                                             

 [46] "Mental disorders. (Check all that apply.) [Brain fog / clouding of consciousness https://en.wikipedia.org/wiki/Clouding_of_consciousness]"                                                                                                                                                                                                                                    

 [47] "Mental disorders. (Check all that apply.) [Any other mental disorder https://en.wikipedia.org/wiki/Mental_disorder]"                                                                                                                                                                                                                                                          

 [48] "If you checked anything above, what are the names of the actual conditions that you have?"                                                                                                                                                                                                                                                                                    

 [49] "Neurological disorders. (Check all that apply.) [Headache https://en.wikipedia.org/wiki/Headache]"                                                                                                                                                                                                                                                                            

 [50] "Neurological disorders. (Check all that apply.) [Functional neurological disorder (FND) https://en.wikipedia.org/wiki/Functional_neurological_symptom_disorder]"                                                                                                                                                                                                              

 [51] "Neurological disorders. (Check all that apply.) [Any other neurological disorder https://en.wikipedia.org/wiki/Neurological_disorder]"                                                                                                                                                                                                                                        

 [52] "If you checked anything above, what are the names of the actual conditions that you have?"                                                                                                                                                                                                                                                                                    

 [53] "Diseases of the circulatory system. (Check all that apply.) [Hypotension (low blood pressure) https://en.wikipedia.org/wiki/Hypotension]"                                                                                                                                                                                                                                     

 [54] "Diseases of the circulatory system. (Check all that apply.) [Prehypertension (high normal blood pressure) https://en.wikipedia.org/wiki/Prehypertension]"                                                                                                                                                                                                                     

 [55] "Diseases of the circulatory system. (Check all that apply.) [Hypertension (high blood pressure) https://en.wikipedia.org/wiki/Hypertension]"                                                                                                                                                                                                                                  

 [56] "Diseases of the circulatory system. (Check all that apply.) [Any other blood pressure abnormality https://en.wikipedia.org/wiki/Blood_pressure]"                                                                                                                                                                                                                              

 [57] "Diseases of the circulatory system. (Check all that apply.) [Angina https://en.wikipedia.org/wiki/Angina]"                                                                                                                                                                                                                                                                    

 [58] "Diseases of the circulatory system. (Check all that apply.) [Cardiovascular disease (CVD) https://en.wikipedia.org/wiki/Cardiovascular_disease]"                                                                                                                                                                                                                              

 [59] "Diseases of the circulatory system. (Check all that apply.) [Arterial embolism https://en.wikipedia.org/wiki/Arterial_embolism]"                                                                                                                                                                                                                                              

 [60] "Diseases of the circulatory system. (Check all that apply.) [Vasospasm https://en.wikipedia.org/wiki/Vasospasm]"                                                                                                                                                                                                                                                              

 [61] "Diseases of the circulatory system. (Check all that apply.) [Any other disease of the circulatory system https://en.wikipedia.org/wiki/Circulatory_system]"                                                                                                                                                                                                                   

 [62] "If you checked anything above, what are the names of the actual conditions that you have?"                                                                                                                                                                                                                                                                                    

 [63] "Other chronic conditions. (Check all that apply.) [Immune disorder https://en.wikipedia.org/wiki/Immune_disorder]"                                                                                                                                                                                                                                                            

 [64] "Other chronic conditions. (Check all that apply.) [Chronic or persistent infection https://en.wikipedia.org/wiki/Infection]"                                                                                                                                                                                                                                                  

 [65] "Other chronic conditions. (Check all that apply.) [Mycosis https://en.wikipedia.org/wiki/Mycosis]"                                                                                                                                                                                                                                                                            

 [66] "Other chronic conditions. (Check all that apply.) [Asthma https://en.wikipedia.org/wiki/Asthma]"                                                                                                                                                                                                                                                                              

 [67] "Other chronic conditions. (Check all that apply.) [Chronic fatigue https://en.wikipedia.org/wiki/Fatigue#Chronic_fatigue]"                                                                                                                                                                                                                                                    

 [68] "If you checked anything above, what are the names of the actual conditions that you have?"                                                                                                                                                                                                                                                                                    

 [69] "Do you have any other chronic conditions? Which ones?"                                                                                                                                                                                                                                                                                                                        

 [70] "OPTIONAL. What is your systolic blood pressure? (mmHg)"                                                                                                                                                                                                                                                                                                                       

 [71] "OPTIONAL. What is your diastolic blood pressure? (mmHg)"                                                                                                                                                                                                                                                                                                                      

 [72] "OPTIONAL. What is your Body Fat Percentage (BFP)? (percent)"                                                                                                                                                                                                                                                                                                                  

 [73] "What measurement technique did you use to determine your body fat percentage (BFP)?"                                                                                                                                                                                                                                                                                          

 [74] "The following two questions are about your neck and waist circumference. In what units will you answer?"                                                                                                                                                                                                                                                                      

 [75] "OPTIONAL. What is your NECK circumference? (Use the units from the previous question.)"                                                                                                                                                                                                                                                                                       

 [76] "OPTIONAL. What is your WAIST circumference? (Use the units from the previous question.)"                                                                                                                                                                                                                                                                                      

 [77] "The next question is about how often you have sex. In what units will you answer?"                                                                                                                                                                                                                                                                                            

 [78] "How often do you have sex? (Use the units from the previous question.)"                                                                                                                                                                                                                                                                                                       

 [79] "Are you trying to abstain from masturbation and sex as much as possible?"                                                                                                                                                                                                                                                                                                     

 [80] "The next question is about your typical intravaginal ejaculation latency time (IELT). In what units will you give the answer?"                                                                                                                                                                                                                                                

 [81] "What is your typical intravaginal ejaculation latency time (IELT)? (Use the units from the previous question.)"                                                                                                                                                                                                                                                               

 [82] "In the past 6 months, have you experienced any symptoms after you had sex or after you masturbated or after you had a nocturnal emission?"                                                                                                                                                                                                                                    

 [83] "Do you have symptoms after you have sex (with ejaculation) with another person?"                                                                                                                                                                                                                                                                                              

 [84] "Do you have symptoms after non-ejaculatory sex with another person?"                                                                                                                                                                                                                                                                                                          

 [85] "Do you have symptoms after you masturbate (with ejaculation)?"                                                                                                                                                                                                                                                                                                                

 [86] "Do you have symptoms after you masturbate without ejaculation?"                                                                                                                                                                                                                                                                                                               

 [87] "Do you have symptoms after you ejaculate during sleep?"                                                                                                                                                                                                                                                                                                                       

 [88] "Do you have POIS or have you ever had POIS in the past?"                                                                                                                                                                                                                                                                                                                      

 [89] "Symptom clusters. The listed symptoms are descriptive of each cluster -- you do not need to have every single symptom in a cluster in order to select it. [General cluster: extreme fatigue, exhausted, palpitations, problems finding words, incoherent speech, dysarthria, concentration difficulties, quickly irritated, can not stand noise, photophobia, depressed mood]"

 [90] "Symptom clusters. The listed symptoms are descriptive of each cluster -- you do not need to have every single symptom in a cluster in order to select it. [Flu-like cluster: feverish, extreme warmth, perspiration, shivery, ill with flu, feeling sick, feeling cold]"                                                                                                      

 [91] "Symptom clusters. The listed symptoms are descriptive of each cluster -- you do not need to have every single symptom in a cluster in order to select it. [Head cluster: headache, foggy feeling in the head, heavy feeling in the head]"                                                                                                                                     

 [92] "Symptom clusters. The listed symptoms are descriptive of each cluster -- you do not need to have every single symptom in a cluster in order to select it. [Eyes cluster: burning, red injected eyes, blurred vision, watery, irritating, itching eyes, painful eyes]"                                                                                                         

 [93] "Symptom clusters. The listed symptoms are descriptive of each cluster -- you do not need to have every single symptom in a cluster in order to select it. [Nose cluster: congested nose, watery, runny nose, sneezing]"                                                                                                                                                       

 [94] "Symptom clusters. The listed symptoms are descriptive of each cluster -- you do not need to have every single symptom in a cluster in order to select it. [Throat cluster: dirty taste in mouth, dry mouth, sore throat, tickling cough, hoarse voice]"                                                                                                                       

 [95] "Symptom clusters. The listed symptoms are descriptive of each cluster -- you do not need to have every single symptom in a cluster in order to select it. [Muscle cluster: muscle tension in back or neck, muscle weakness, painful muscles, heavy legs, stiffness in muscles]"                                                                                               

 [96] "Please explain if you selected \"POIS and not\" OR if your symptoms fall within a cluster, but are not exactly described by the cluster."                                                                                                                                                                                                                                     

 [97] "Local genital skin reaction [Local genital skin reaction]"                                                                                                                                                                                                                                                                                                                    

 [98] "Please explain if you selected \"Always\", \"Occasionally\", or \"POIS and not\"."                                                                                                                                                                                                                                                                                            

 [99] "Consider this statement: “During a POIS attack, a latent illness and / or a previous scar of a trauma or surgery becomes painful or sensitive again. As soon as POIS has disappeared, the illness or scar sensitivity disappears as well.” [Symptoms described by this statement]"                                                                                            

[100] "Please explain if you selected \"Always\", \"Occasionally\", or \"POIS and not\"."                                                                                                                                                                                                                                                                                            

[101] "Emotional symptoms [Angry outbursts]"                                                                                                                                                                                                                                                                                                                                         

[102] "Emotional symptoms [Anxiety]"                                                                                                                                                                                                                                                                                                                                                 

[103] "Emotional symptoms [Confusion]"                                                                                                                                                                                                                                                                                                                                               

[104] "Emotional symptoms [Depression]"                                                                                                                                                                                                                                                                                                                                              

[105] "Emotional symptoms [Irritability]"                                                                                                                                                                                                                                                                                                                                            

[106] "Emotional symptoms [Social withdrawal]"                                                                                                                                                                                                                                                                                                                                       

[107] "Please explain if you selected \"POIS and not\"."                                                                                                                                                                                                                                                                                                                             

[108] "Emotional symptoms #2 [Marked rapid changes in emotion unrelated to external events, such as mood swings; feeling suddenly sad or tearful; or increased sensitivity to rejection.]"                                                                                                                                                                                           

[109] "Emotional symptoms #2 [Marked irritability or anger or increased interpersonal conflicts.]"                                                                                                                                                                                                                                                                                   

[110] "Emotional symptoms #2 [Marked depressed mood, feelings of hopelessness, or self-deprecating thoughts.]"                                                                                                                                                                                                                                                                       

[111] "Emotional symptoms #2 [Marked anxiety, tension, and/or feelings of being keyed up or on edge.]"                                                                                                                                                                                                                                                                               

[112] "Please explain if you selected \"POIS and not\"."                                                                                                                                                                                                                                                                                                                             

[113] "Somatic symptoms [Abdominal bloating]"                                                                                                                                                                                                                                                                                                                                        

[114] "Somatic symptoms [Chest tendernes or pain]"                                                                                                                                                                                                                                                                                                                                   

[115] "Somatic symptoms [Headache]"                                                                                                                                                                                                                                                                                                                                                  

[116] "Somatic symptoms [Joint or muscle pain]"                                                                                                                                                                                                                                                                                                                                      

[117] "Somatic symptoms [Swelling of extremities]"                                                                                                                                                                                                                                                                                                                                   

[118] "Somatic symptoms [Weight gain]"                                                                                                                                                                                                                                                                                                                                               

[119] "Please explain if you selected \"POIS and not\"."                                                                                                                                                                                                                                                                                                                             

[120] "Energy symptoms [Decreased interest in usual activities, such as work, school, friends, hobbies]"                                                                                                                                                                                                                                                                             

[121] "Energy symptoms [Subjective difficulty in concentration]"                                                                                                                                                                                                                                                                                                                     

[122] "Energy symptoms [Lethargy, easy fatigability, or marked lack of energy]"                                                                                                                                                                                                                                                                                                      

[123] "Energy symptoms [Marked change in appetite, overeating, or specific food cravings]"                                                                                                                                                                                                                                                                                           

[124] "Energy symptoms [Hypersomnia (excessive sleeping) or insomnia]"                                                                                                                                                                                                                                                                                                               

[125] "Energy symptoms [A sense of being overwhelmed or out of control]"                                                                                                                                                                                                                                                                                                             

[126] "Please explain if you selected \"POIS and not\"."                                                                                                                                                                                                                                                                                                                             

[127] "Allergy-like symptoms [Watery / itching / burning eyes]"                                                                                                                                                                                                                                                                                                                      

[128] "Allergy-like symptoms [Runny nose]"                                                                                                                                                                                                                                                                                                                                           

[129] "Allergy-like symptoms [Sneezing]"                                                                                                                                                                                                                                                                                                                                             

[130] "Allergy-like symptoms [Swelling in groin, prostate, or tail bone]"                                                                                                                                                                                                                                                                                                            

[131] "Allergy-like symptoms [Anal itching]"                                                                                                                                                                                                                                                                                                                                         

[132] "Allergy-like symptoms [Overall itching]"                                                                                                                                                                                                                                                                                                                                      

[133] "Allergy-like symptoms [Hives / rash]"                                                                                                                                                                                                                                                                                                                                         

[134] "Allergy-like symptoms [Dermatitis / eczema]"                                                                                                                                                                                                                                                                                                                                  

[135] "Allergy-like symptoms [Asthma]"                                                                                                                                                                                                                                                                                                                                               

[136] "Allergy-like symptoms [Sinus problems, including congestion and pressure felt in the eyes]"                                                                                                                                                                                                                                                                                   

[137] "Please explain if you selected \"POIS and not\"."                                                                                                                                                                                                                                                                                                                             

[138] "Flu-like symptoms  [General feeling of being ill as in an actual flu]"                                                                                                                                                                                                                                                                                                        

[139] "Flu-like symptoms  [Fever / perspiration / shivering]"                                                                                                                                                                                                                                                                                                                        

[140] "Flu-like symptoms  [Sore throat]"                                                                                                                                                                                                                                                                                                                                             

[141] "Flu-like symptoms  [Joint pain]"                                                                                                                                                                                                                                                                                                                                              

[142] "Flu-like symptoms  [Muscle pain]"                                                                                                                                                                                                                                                                                                                                             

[143] "Flu-like symptoms  [Hyperalgesia / nerve pain / fibromyalgia-like pain]"                                                                                                                                                                                                                                                                                                      

[144] "Flu-like symptoms  [Fatigue]"                                                                                                                                                                                                                                                                                                                                                 

[145] "Flu-like symptoms  [Bad taste in the mouth]"                                                                                                                                                                                                                                                                                                                                  

[146] "Flu-like symptoms  [Nausea]"                                                                                                                                                                                                                                                                                                                                                  

[147] "Please explain if you selected \"POIS and not\"."                                                                                                                                                                                                                                                                                                                             

[148] "Cognitive symptoms [Cognitive problems]"                                                                                                                                                                                                                                                                                                                                      

[149] "Cognitive symptoms [Memory problems]"                                                                                                                                                                                                                                                                                                                                         

[150] "Cognitive symptoms [Brain fog]"                                                                                                                                                                                                                                                                                                                                               

[151] "Cognitive symptoms [Lack of mental focus]"                                                                                                                                                                                                                                                                                                                                    

[152] "Cognitive symptoms [Speech impairment]"                                                                                                                                                                                                                                                                                                                                       

[153] "Cognitive symptoms [Slow thinking process (bradypsychia)]"                                                                                                                                                                                                                                                                                                                    

[154] "Cognitive symptoms [Dyslexia]"                                                                                                                                                                                                                                                                                                                                                

[155] "Cognitive symptoms [Insomnia / hypersomnia / sleep pattern disturbance]"                                                                                                                                                                                                                                                                                                      

[156] "Cognitive symptoms [Impaired problem solving capacity]"                                                                                                                                                                                                                                                                                                                       

[157] "Cognitive symptoms [Difficulty in task management]"                                                                                                                                                                                                                                                                                                                           

[158] "Cognitive symptoms [Inability to make decisions]"                                                                                                                                                                                                                                                                                                                             

[159] "Please explain if you selected \"POIS and not\"."                                                                                                                                                                                                                                                                                                                             

[160] "Peripheral symptoms [Muscle weakness especially in the legs]"                                                                                                                                                                                                                                                                                                                 

[161] "Peripheral symptoms [\"Collapsing\" face muscles giving a very tired appearance]"                                                                                                                                                                                                                                                                                             

[162] "Peripheral symptoms [Muscle twitch]"                                                                                                                                                                                                                                                                                                                                          

[163] "Peripheral symptoms [Restless leg syndrome]"                                                                                                                                                                                                                                                                                                                                  

[164] "Peripheral symptoms [Lack of coordination / clumsiness]"                                                                                                                                                                                                                                                                                                                      

[165] "Peripheral symptoms [Tremor and other motor disturbances]"                                                                                                                                                                                                                                                                                                                    

[166] "Peripheral symptoms [Neurological problems in the extremities (tingling in the palms and sole / burning sensations or numbness in the extremities)]"                                                                                                                                                                                                                          

[167] "Peripheral symptoms [Sensitivity to noise]"                                                                                                                                                                                                                                                                                                                                   

[168] "Peripheral symptoms [Sensitivity to light (photophobia)]"                                                                                                                                                                                                                                                                                                                     

[169] "Peripheral symptoms [Dry hair / scalp / skin]"                                                                                                                                                                                                                                                                                                                                

[170] "Peripheral symptoms [Redness on the skin]"                                                                                                                                                                                                                                                                                                                                    

[171] "Peripheral symptoms [Redness / pain / inflammation of gums, oral mucosa, or throat]"                                                                                                                                                                                                                                                                                          

[172] "Peripheral symptoms [Canker sores]"                                                                                                                                                                                                                                                                                                                                           

[173] "Peripheral symptoms [Stomach ache]"                                                                                                                                                                                                                                                                                                                                           

[174] "Peripheral symptoms [Diarrhea]"                                                                                                                                                                                                                                                                                                                                               

[175] "Peripheral symptoms [Abdominal cramps]"                                                                                                                                                                                                                                                                                                                                       

[176] "Peripheral symptoms [Angina]"                                                                                                                                                                                                                                                                                                                                                 

[177] "Please explain if you selected \"POIS and not\"."                                                                                                                                                                                                                                                                                                                             

[178] "Emotional / psychological symptoms [Anxiety]"                                                                                                                                                                                                                                                                                                                                 

[179] "Emotional / psychological symptoms [Fatigue]"                                                                                                                                                                                                                                                                                                                                 

[180] "Emotional / psychological symptoms [Irritability]"                                                                                                                                                                                                                                                                                                                            

[181] "Emotional / psychological symptoms [Social phobia]"                                                                                                                                                                                                                                                                                                                           

[182] "Emotional / psychological symptoms [Low self-esteem]"                                                                                                                                                                                                                                                                                                                         

[183] "Emotional / psychological symptoms [Emotional instability / mood swings]"                                                                                                                                                                                                                                                                                                     

[184] "Emotional / psychological symptoms [Emotional intensity]"                                                                                                                                                                                                                                                                                                                     

[185] "Emotional / psychological symptoms [Dysphoria]"                                                                                                                                                                                                                                                                                                                               

[186] "Emotional / psychological symptoms [Hypotension and related symptoms, such as reflex tachycardia, cold sweat, dizziness, exercise intolerance, orthostatic hypotension]"                                                                                                                                                                                                      

[187] "Emotional / psychological symptoms [Obsessive-compulsive behaviors]"                                                                                                                                                                                                                                                                                                          

[188] "Emotional / psychological symptoms [Phobias]"                                                                                                                                                                                                                                                                                                                                 

[189] "Emotional / psychological symptoms [Appetite disorders (anorexia/bulimia)]"                                                                                                                                                                                                                                                                                                   

[190] "Emotional / psychological symptoms [Anxiety urination (frequent urge to urinate)]"                                                                                                                                                                                                                                                                                            

[191] "Emotional / psychological symptoms [Personality changes into an irritable and anti-social type]"                                                                                                                                                                                                                                                                              

[192] "Emotional / psychological symptoms [Decreased work capacity]"                                                                                                                                                                                                                                                                                                                 

[193] "Emotional / psychological symptoms [Poor task management]"                                                                                                                                                                                                                                                                                                                    

[194] "Emotional / psychological symptoms [Difficulties interacting with others]"                                                                                                                                                                                                                                                                                                    

[195] "Emotional / psychological symptoms [Feelings of loneliness and powerlessness]"                                                                                                                                                                                                                                                                                                

[196] "Emotional / psychological symptoms [Depressive mood]"                                                                                                                                                                                                                                                                                                                         

[197] "Emotional / psychological symptoms [Autism-like symptoms]"                                                                                                                                                                                                                                                                                                                    

[198] "Emotional / psychological symptoms [Impulsivity]"                                                                                                                                                                                                                                                                                                                             

[199] "Emotional / psychological symptoms [Paranoid thinking]"                                                                                                                                                                                                                                                                                                                       

[200] "Please explain if you selected \"POIS and not\"."                                                                                                                                                                                                                                                                                                                             

[201] "Do you have any OTHER symptoms during POIS attacks? If so, please describe."                                                                                                                                                                                                                                                                                                  

[202] "When you are NOT taking any medications, drugs, hormones, supplements, narcotics, or alcohol, do you still have POIS symptoms? If \"No\", please explain."                                                                                                                                                                                                                    

[203] "Do the POIS symptoms cause significant distress or interference with work, school, usual social activities, or relationships with others? For example, do the POIS symptoms cause avoidance of social activities or decreased productivity and efficiency at work, school, or home?"                                                                                          

[204] "POIS symptoms in terms of physical pain: (Pain)"                                                                                                                                                                                                                                                                                                                              

[205] "POIS symptoms in terms of their interference with usual social activities or relationships with others: (Social)"                                                                                                                                                                                                                                                             

[206] "POIS symptoms in terms of their interference with work or school: (Work)"                                                                                                                                                                                                                                                                                                     

[207] "POIS symptoms in terms of their interference with activities of daily living, such as dressing / bathing, eating, walking / moving around, toileting, hygiene: (ADLs)"                                                                                                                                                                                                        

[208] "The next question is about how soon your POIS symptoms typically begin after ejaculation. In what units will you give the answer?"                                                                                                                                                                                                                                            

[209] "How soon do your POIS symptoms typically begin after ejaculation? (Use the units from the previous question.)"                                                                                                                                                                                                                                                                

[210] "How long do your POIS symptoms typically last, in days? (-1 = not applicable / other)"                                                                                                                                                                                                                                                                                        

[211] "Please explain if you responded \"not applicable / other\"."                                                                                                                                                                                                                                                                                                                  

[212] "Do your POIS symptoms disappear over time on their own, that is, without treatment? If \"no\", please explain. "                                                                                                                                                                                                                                                              

[213] "Do your symptoms typically disappear gradually or spontaneously? "                                                                                                                                                                                                                                                                                                            

[214] "Do you have chronic symptoms that remain after a POIS attack is over, that you think are caused by POIS? If so, please describe these symptoms. "                                                                                                                                                                                                                             

[215] "Do you have POIS symptoms in any situation other than after sex / masturbation / nocturnal emission?"                                                                                                                                                                                                                                                                         

[216] "At what age did you first have POIS symptoms? Please try to answer as best as you can. (99 = NA / Not sure)"                                                                                                                                                                                                                                                                  

[217] "Did you first have POIS symptoms during puberty or adolescence?"                                                                                                                                                                                                                                                                                                              

[218] "Do you feel that your POIS first started soon after a particular event? If so, what were the event(s) that happened shortly before your first POIS attack? Check all that apply."                                                                                                                                                                                             

[219] "If you chose an option above that asks you to describe it here, please describe it here. "                                                                                                                                                                                                                                                                                    

[220] "In 2011, Dr. Marcel D. Waldinger published a study about 45 Dutch men with POIS. Are you one of the people described in that study?"                                                                                                                                                                                                                                          

[221] "Have you done any POIS-related medical tests?"                                                                                                                                                                                                                                                                                                                                

[222] "OPTIONAL. Please describe the NORMAL medical tests:"                                                                                                                                                                                                                                                                                                                          

[223] "OPTIONAL. Please describe the ABNORMAL medical tests, including the test results:"                                                                                                                                                                                                                                                                                            

[224] "Are you subscribed to the /r/POIS forum on Reddit? (https://www.reddit.com/r/POIS/)"                                                                                                                                                                                                                                                                                          

[225] "Are you subscribed to the POIS Center forum? (https://poiscenter.com/forums/index.php)"                                                                                                                                                                                                                                                                                       

[226] "Are you subscribed to the Russian-language POIS Center forum? (http://poiscenter.net/)"                                                                                                                                                                                                                                                                                       

[227] "Are you subscribed to the Post Orgasmic Illness Syndrome (POIS) Facebook group? (https://www.facebook.com/groups/1457009341209480/)"                                                                                                                                                                                                                                          

[228] "Have you written a post in the POIS thread on the Naked Scientists forum? (https://www.thenakedscientists.com/forum/index.php?topic=6576.0)"                                                                                                                                                                                                                                  

[229] "Have you edited the English-language Wikipedia article on POIS? (https://en.wikipedia.org/wiki/Postorgasmic_illness_syndrome)"                                                                                                                                                                                                                                                

[230] "Have you edited a Wikipedia article on POIS in a language OTHER THAN English? "                                                                                                                                                                                                                                                                                               

[231] "If you answered \"Yes\" above, please provide a link to the Wikipedia article:"                                                                                                                                                                                                                                                                                               

[232] "Do you participate or have you participated in any other POIS-related internet forums or communities? If so, which ones?"                                                                                                                                                                                                                                                     

[233] "Have you used any protocol to treat POIS (whether successfully or not) OR has something happened to you that had an impact on your POIS symptoms?"                                                                                                                                                                                                                            

[234] "You do this:"                                                                                                                                                                                                                                                                                                                                                                 

[235] "The protocol involves the following. Check all that apply."                                                                                                                                                                                                                                                                                                                   

[236] "The impact that the protocol has on my POIS symptoms"                                                                                                                                                                                                                                                                                                                         

[237] "Please describe the protocol. Be specific: names of substances (preferably with a URL of where they can be bought), dosages, times of day, and so on."                                                                                                                                                                                                                        

[238] "Have you used any OTHER protocol to treat POIS (whether successfully or not) OR has something ELSE happened to you that had an impact on your POIS symptoms?"                                                                                                                                                                                                                 

[239] "You do this:"                                                                                                                                                                                                                                                                                                                                                                 

[240] "The protocol involves the following. Check all that apply."                                                                                                                                                                                                                                                                                                                   

[241] "The impact that the protocol has on my POIS symptoms"                                                                                                                                                                                                                                                                                                                         

[242] "Please describe the protocol. Be specific: names of substances (preferably with a URL of where they can be bought), dosages, times of day, and so on."                                                                                                                                                                                                                        

[243] "Have you used any OTHER protocol to treat POIS (whether successfully or not) OR has something ELSE happened to you that had an impact on your POIS symptoms?"                                                                                                                                                                                                                 

[244] "You do this:"                                                                                                                                                                                                                                                                                                                                                                 

[245] "The protocol involves the following. Check all that apply."                                                                                                                                                                                                                                                                                                                   

[246] "The impact that the protocol has on my POIS symptoms"                                                                                                                                                                                                                                                                                                                         

[247] "Please describe the protocol. Be specific: names of substances (preferably with a URL of where they can be bought), dosages, times of day, and so on."                                                                                                                                                                                                                        

[248] "Have you used any OTHER protocol to treat POIS (whether successfully or not) OR has something ELSE happened to you that had an impact on your POIS symptoms?"                                                                                                                                                                                                                 

[249] "You do this:"                                                                                                                                                                                                                                                                                                                                                                 

[250] "The protocol involves the following. Check all that apply."                                                                                                                                                                                                                                                                                                                   

[251] "The impact that the protocol has on my POIS symptoms"                                                                                                                                                                                                                                                                                                                         

[252] "Please describe the protocol. Be specific: names of substances (preferably with a URL of where they can be bought), dosages, times of day, and so on."                                                                                                                                                                                                                        

[253] "Have you used any OTHER protocol to treat POIS (whether successfully or not) OR has something ELSE happened to you that had an impact on your POIS symptoms?"                                                                                                                                                                                                                 

[254] "You do this:"                                                                                                                                                                                                                                                                                                                                                                 

[255] "The protocol involves the following. Check all that apply."                                                                                                                                                                                                                                                                                                                   

[256] "The impact that the protocol has on my POIS symptoms"                                                                                                                                                                                                                                                                                                                         

[257] "Please describe the protocol. Be specific: names of substances (preferably with a URL of where they can be bought), dosages, times of day, and so on."                                                                                                                                                                                                                        

[258] "Have you used any OTHER protocol to treat POIS (whether successfully or not) OR has something ELSE happened to you that had an impact on your POIS symptoms?"                                                                                                                                                                                                                 

[259] "You do this:"                                                                                                                                                                                                                                                                                                                                                                 

[260] "The protocol involves the following. Check all that apply."                                                                                                                                                                                                                                                                                                                   

[261] "The impact that the protocol has on my POIS symptoms"                                                                                                                                                                                                                                                                                                                         

[262] "Please describe the protocol. Be specific: names of substances (preferably with a URL of where they can be bought), dosages, times of day, and so on."                                                                                                                                                                                                                        

[263] "Have you used any OTHER protocol to treat POIS (whether successfully or not) OR has something ELSE happened to you that had an impact on your POIS symptoms?"                                                                                                                                                                                                                 

[264] "You do this:"                                                                                                                                                                                                                                                                                                                                                                 

[265] "The protocol involves the following. Check all that apply."                                                                                                                                                                                                                                                                                                                   

[266] "The impact that the protocol has on my POIS symptoms"                                                                                                                                                                                                                                                                                                                         

[267] "Please describe the protocol. Be specific: names of substances (preferably with a URL of where they can be bought), dosages, times of day, and so on."                                                                                                                                                                                                                        

[268] "Have you used any OTHER protocol to treat POIS (whether successfully or not) OR has something ELSE happened to you that had an impact on your POIS symptoms?"