I have RA and Ulcerative Colitis and a large number of food allergies. I found eliminating night shade vegetables (tomato, peppers, egg plant etc) to help with the inflammation. My Natural path doctor also prescribed D-Hist which helped reduce the inflammation but it takes a while. Good luck! https://www.orthomolecularproducts.ca/Natural-D...

I agree with a food diary, also noting how you feel after eating whatever it was you ate. Just note that you may have delayed reactions, such as a few hours until the next day. For example, I am allergic to milk (IGG not IGE reaction). If I were to eat anything with milk in it, the next day my eyelids are puffy. Sometimes, I have a very tired feeling the next day.

https://www.mindbodygreen.com/0-12540/the-simpl...
Start simple. Use a food diary. No matter what test show, let your body be your guide.