How was your experience as you also appear to have progressed from gluten to various others? Was this just a case of finding foods that you had long standing issues with or was it something that evolved through the healing from being gluten free and perhaps not managing your diet well enough.
The soy was immediate. I used to be able to eat non-GMO corn (in New Zealand), but then even that became a problem. I stopped nightshades because of their inflammatory effect and my arthritis, and then reacted violently when I tried to reintroduce (tomatoes), but once I stopped potato starchl I realized that an itching I had had on my shoulders ever since gluten free had gone away. The citrus was brought on by over-consumption, and the legumes happened just recently although I had been unconsciously avoiding dried beans for a while.
So I don't think I will ever eat soy or corn. I am not sure about any of the others - possibly potatoes will continue to be a problem. I expect to get back citrus and hope to get back most legumes.
I have just consulted a certified nutritionist who is helping me heal my gut (after 2-1/2 yrs it is still not healed) and she wants me to wait another year before I challenge anything.