I noticed on another post you mention leaky gut and yeast overgrowth. Both of my kids have this as well. Are you treating yeast? We have seen great improvement in our son after agressively treating for yeast overgrowth, and eliminating reactive foods. We are now addressing latent virus issues as well, and hope to see even more improvement with that. We will likely begin chelation in the near future as well.
From the information I’ve gathered, a lot of food intolerances/allergies that we see in our kids can stem from the underlying gut problems. Once the gut begins to heal after treating for yeast, viruses, dysbiotic bacteria, heavy metals, etc. the immune system is able to rebalance itself and most food sensitivites disappear, along with developmental and behavioural issues.
Are you having testing done through Great Plains? We have had a number of test run by them, and I highly recommend them. Good luck to you!