If you really want to test I think a better way to consume gluten might be wheat pasta with no other ingredients except wheat that could muddy the water so to speak. I’m celiac and I’ve definitely had periods of time where I consumed gluten with no obvious immediate reactions but there was still damage occurring. Since gluten causes an autoimmune response it can wax and wane like other autoimmune diseases and be very confusing. The reactions aren’t always the same even from meal to meal. Best wishesAppreciate your comments @LadyRae , I should really get a celiac test done because I suspect I may have some sensitivity to gluten (it's not just the digestive issues, but mental and other issues as well), but then I have to eat gluten for an entire month and persist through any negative symptoms...