I start sneezing whenever I eat processed food. I think it's an allergy to preservatives. There's no test for that. I first noticed it about 5 years ago. Af

I start sneezing whenever I eat processed food. I think it's an allergy to preservatives. There's no test for that. I first noticed it about 5 years ago. After eating Subway, I always got sneezy, and also after drinking beer. I had an allergy test but nothing came up positive. After years of trial and error, I'm pretty confident when I see a fake juice, condiment, or something commonly canned like olives that I will have a reaction if I eat it. I should be a food taster for health nuts