You can find specific animal identification and transportation requirements for swine within the state of Florida here:
https://www.fdacs.gov/Agriculture-Industry/Livestock/Pigs-Swine
The only way we know if an animal is sick is to know what is different from their normal. In order to do this, we have to know what is normal for them. Check out the chart here to see what is generally normal for swine, your pig may differ slightly. Variations from normal, such as a high temperature, rapid heart rate, or slow breathing can be a sign that something is wrong with your animal and you should investigate.
Diseases present in at least one of four categories: Respiratory, Gastro-intestinal, Reproductive, and Miscellaneous. Classes of animals, such a young, adults, and reproducing animals can be at risk of different diseases and therefore should be treated differently. Vaccination protocols should be developed with a veterinarian and will be specific to your animals and their risk of exposure. Consideration should be given to the animals final use, if they are going into the food system (pork products), you will be constrained to using food safe products.
Parasites can have a drastic effect on swine development, especially when young. Since swine 'root' in the ground they can be more prone to ingesting parasite eggs and developing a heavy load. Parasites can cause medical issues but also can effect performance, like weight gain. Work with a veterinarian to establish an effective parasite control program for your swine as their purpose (pet or food) will dictate what products are safe and dosage.
Learn more here: https://extension2.missouri.edu/g2430
Learn more about parasite control in show pig projects here: https://extension.wsu.edu/animalag/content/parasite-control-in-show-pig-projects/