What can and can't you eat?

I seem to be gassy with pop sometimes, icecream just doesn't agree with me but it's like I can eat cheeseburgers with american cheese but nacho cheese doesn't like me, stuff like that. Pork chops make me feel wonderful (why?) and pizza doesn't agree with me sometimes. Mostly I think grease and some dairy, things like that. Sometimes I'm perfectly fine.

What about you?