My brother was just diagnosed with celiac disease, had endoscopy, blood comp panel was positive too. I too had developed some symptoms, diarrhea, upset stomach...went to a doctor...said I should go on an elimination diet, no gluten, milk, dairy, sugar, caffein, etc. At this visit, she also ordered a blood test for the celiac disease panel. So, I went on the gluten free diet, 12 days later went for the blood work. The doctor informed me that I have tested negative for celiac disease, but positive for gliadin ab (igg) 57 meaning I have a "gluten sensitivity." I have heard that if you get tested for C.D. when you are on a G.F. diet that it will not show the true results...Could this be the case for me? I had been on a G.F. diet for 12 days prior to my blood work. Does gluten sensitivity mean I should stay away from gluten, but occasionally can have that "slice of pizza?"