Thank you, I think with the initial blood tests they did actually do the IgA tests first to make sure those are normal! I am wondering if there are any tests that actually test for the presence of the gluten protein? From my understanding, all of these test for gluten antibodies, which in the case of refractory celiac would switch to a gluten-independent mechanism of activation. Because my ttg levels havent changed at all with my increasingly strict diet, I am concerned about distinguishing between the possibilities that 1) I am super sensitive to very very small amounts of gluten and am getting cross contamination from somewhere I haven't identified or 2) have refractory celiac where...