Ive been havin diarreah for almost 3 months ny doctor said its ibs sometimes i get normal stools nice brown but most of the time is direah is it ibs?

Have any testing?: Diarrhea essentially straight for three months is concening, and not typical of IBS. Remember, IBS is a diagnosis of exclusion, meaning there are many other conditions that must be considered before settling on this diagnosis. Crohn's disease? Ulcerative colitis? Gallbladder or pancreas issue? Hyperthyroid? I think your symptom deserves another look.