Food allergies😔

Hi Ladies, i just get food allergies so frequently that sometimes its hard to even understand what food caused it. In my first pregnancy i got developed allergy to eggplant, mushrooms and bananas. They gave me severe pain in upper abdomen. Now this pregnancy again I think I am just developing random allergies to food that I have eaten before safely. Same reaction - upper abdomen aches so bad.

Any advice? It is so difficult to eliminate just so many things from diet😔