Hi BellaElla,
It was in my 30's that i started getting that food allergy thing. Where the foods i used to eat i couldn't eat anylonger.. Like green peppers or red peppers,, they shoot right through me. Cheese ,, bad idea indeed. Milk, i can't even bring to my mouth without feeling nauseous. Most of the food i can no longer eat are lactose based. And all the lactose intolerant anicdotes don't work for me,, on the contrary they give me migraines.
There are other foods that i'm a bit sensitive too but not allergic,,, like grapes,, they act like prunes to me now,, and i remember i used to eat them off the vines of my aunt grape vines in her yard.
I guess its a combination of age and illness.... who knows.
Good luck
Take care