Why Him?

John has a special disease. Everyone says it's nothing special but Alexander knows better. The question is what is it?

(based on a real and rare disease, sorry if it's confusing in the beginning, it will make more sense later)

Disclaimer: This story attempts to replicate the symptoms of a real life disease but of course the depictions will not be 100% accurate, though, I did try my best to give you a taste of what it may actually be like based off of research