How to tell if you have celiac disease?

GiM.d: If you have any suspicion better be in good hand i.E a G.I.M.D and get blood test antigliadin antibody ttg and get of gluten ( wheat, rye, oat barley ) and see how you feel its not 100% conclusive finally biopsy migt be needed otherwise malabsoption might occur.

Blood test, scope : Screening blood tests can be ordered by your health care provider: tissue transglutaminase IgA and total iga. If positive, consultation with a GI specialist is needed for biopsy of the small intestine obtained through an upper GI endoscopy. It is important not to go on a gluten free diet before diagnosis is made. Labs and biopsy return to normal on gluten free diet (false negative).