A cough that lasts more than three weeks or a chronic cough could indicate an underlying respiratory issue like asthma, COPD, or a lung infection.

Difficulty breathing or shortness of breath (dyspnea), especially during normal activities or at rest, may be a sign of lung disease, heart problems, or other conditions.

Wheezing is a high-pitched whistling sound when breathing, which may signal asthma, COPD, or other lung conditions. If wheezing is persistent or severe, it’s best to seek medical advice.

Unexplained chest pain or a feeling of tightness in the chest, especially when coupled with other symptoms like shortness of breath, could point to serious lung or heart problems.

If you notice blood in your cough or sputum (hemoptysis), it could be a sign of a serious condition like lung cancer, tuberculosis, or an infection, and you should see a pulmonologist immediately.

Symptoms such as loud snoring, choking, or gasping for air during sleep, daytime sleepiness, or difficulty staying awake during the day could indicate sleep apnea, which requires a pulmonologist's expertise for diagnosis and management.

If you notice that your breathing is becoming more rapid or shallow, or if you’re struggling to catch your breath during routine activities, a pulmonologist can help assess your lung function and diagnose potential problems.

If you are frequently getting respiratory infections such as bronchitis or pneumonia, it could indicate an underlying lung condition that needs medical attention.

If you've been a long-term smoker and are experiencing any respiratory symptoms, it’s wise to see a pulmonologist. Smokers are at a higher risk for developing conditions like COPD and lung cancer.