American food ?? Bleughhhh

strawberrysnap

Alright so idk where this post should go under so putting it here,
No health issues before my year abroad in America then one year later I develop intolerances and allergies whilst being in USA, mostly dairy but also the additives which are banned in the U.K., has this ever happened to anyone else ?? I'm not hating I'm just genuinely curious as I have to get some medical procedures done from the negatives effects of American food in my body now that I'm back in England

Like I said I'm not hating, everyone has a different digestion tolerance etc but my doctor acts like I'm the only person this has happened to