RJS

Hi Everyone, I have POTS. I can't seem to find out "what" is causing my food issues. I can only eat a few foods that we have to cook for very long (undercooking or uncooked makes ears and throat itch). I react to all other foods (rashes, swelling, stomach issues,dry mouth etc). Negative allergy tests. This started 16 years ago after anaphylaxis Does anyone else have this or have any idea of why it happens (test recommendations and names of conditions welcomed). Thanks for your help. -RJS foods tolerated: Boost vanilla plain muffins (flour eggs butter baking soda milk) steak um (beef. Plain. No roll ) mac and cheese (twice cooked. Pasta. Cheddar. Milk. Butter)