Tissue transglutaminase iga ab 1u/ml immunoglobulin a (iga) 376mg/dl range 47 - 310 mg/dl no celiac disease, but something else wrong? experiencing diarrhea, hair loss, fatigue, weight loss and weight gain, constipation, loss of appetite?

Unclear info: The information you provided does not address the antibody level, only the total IgA level. Did you lose weight or gain it? It is not feasible to provide a meaningful opinion without additional history, physical examination and may be some tests. It would be prudent to see your doctor, preferably a gastroenterologist. Wish you good health!