azurefields
Hi Luca,
It's hard for anyone to figure out what tipped the scales into suffering symptoms from gut inflammation and vitamin absorption issues, but it's probably a lot of things.
I did the same thing as you did for my absorption problems which was to cut out wheat and soy and take glutamine and at one point I thought I was healed because I lost a lot of water weight.
However, the inflammation came back over the span of about 4 months. It came back because I didn't really address the root cause which was candida.
so, it's possible you've healed permanently but it's also possible it's a temporary lull brought on by healthy changes.
I would start probing the possibility of candida, fungus and parasites.
Maybe take apple cider vinegar for three or four days and see if you get any dieoff reaction or get some diatomaceous earth.
Congratulations and I hope it is a permanent healing! But if it's not permanent, at least you know you've gotten closer to a full answer to how you got this way.