I am facing a slightly similar issue. I started a gluten free diet 3 months ago, as a possible way to treat my IBS which has been bad for many years. I started to feel overall better, but now am frustrated by some recurring bad GI symptoms. Now that I'm not eating gluten, I know that the blood test for antibodies won't work. I read online that there is a stool test for gluten sensitivity and the gene. Has anyone had it recommended by an MD? The one I found online was from a company called Enterolabs. It was the only site that mentions that kind of testing, so I'm not sure how accepted it is by mainstream GI specialists.Thanks for any suggestion.