SIBO or H pylori
Was always overweight and constipated. Suddenly lost 15 kgs with diarrhoea and become under weight. My symptoms are Brain fog, fatigue, flatulance and not able to gain weight. Had colonoscopy, endoscopy, tTG, CBC and all came normal. Doctors diagnosed me with IBS. I don't think my symptoms match with IBS. Can it be H pylori or SIBO?