He has Klinefelter syndrome and mild gynecomastia.
He has nystagmus, which means his eyes shake side-to-side quickly and uncontrollably, contributing to his already poor vision.
He is an objectophile with very little, if any, interest in people. He prefers objects. He feels incredibly guilty about his attraction and sexual activity.
His objects of affection are usually plushies. He is embarrassed to still have them as an adult, but he would never get rid of them. He has names for each of them.
He is very high-empathy towards everything — people, animals, and objects. For example, if one of his plushies fall, he apologizes and feels deeply saddened, as though he's hurt it in some way. He is easily guilt-tripped by others as a result of this.