Lol, I can't remember if I ever mentioned it, but for pretty much all of my twenties (from when I was 19 to when I was 28) I had an allergy to cow's milk. And I didn't even know what was wrong, I just got sick, like food-poisoning sick, whenever I had like, pizza and stuff. I finally figured out it was milk products (but only cow). It went away on its own like I said which is nice, but whenever I look at large quantities of cheese I still remember how sick I used to get. I never wanted to carry that sentiment over to the character Cheese but I dunno...
