I apologize in advance that I don’t know a ton of the back round history of your story. I just read this post and wasn’t sure if you ever had a standard food allergy test done? You don’t need a Dr to authorize it. Just order the test, follow the instructions at home and mail it back in with payment. Two weeks you will have test results that have checked you bloods response to over 50 foods. This is the link.
I hope maybe this will help. There are other test that they offer to if you want to dig into their website. I have never had any others done just this one. I do believe there is a heavy metal test too.
Best of luck to you. 🙂