What if you do not get any symptoms from your pizza experiment? When I was diagnosed with celiac disease, my only symptom was anemia. My doctors had blamed my anemia on heavy periods from perimenopause for years and a genetic anemia. What if you react to the cheese, garlic, tomatoes and not to the gluten? How are you going to know?
Perhaps you can do a supervised gluten challenge and get re-tested for celiac disease? There was no way I was going to give up gluten or now, carbs (am now a diabetic), without scientific proof, but I know that is also not only possible for many as they lack medical support.
I guess I haven't thought it through, because honestly I am assuming I will react in some way and remember the pain I went through, so I won't want to do it again! The pizza I ate tonight is the same pizza I would make with my gluten free crust, just on regular crust, so I shouldn't react to any of the other ingredients. If I have no symptoms I will contact my allergist and ask him about reintroducing wheat and getting retested. I am concerned though, because I was diagnosed with a positive blood test to wheat allergy. My allergist did send a test to meridian valley lab (back about 4 years ago) and that came back with very very high gluten, gliadin, wheat, barley and many other allergies. I am so paranoid right now that I probably won't try to eat it again, I guess I just had a moment of weakness!