HI, thanks for using healthcare magic Chronic diarrhea can be due to different causes such as : (a) irritable bowel syndrome (b)infections (c)inflammatory bowel disease (d) intolerance to certain foods (e)lactose intolerance (f)side effect of medication (g)endocrine disorders- hyperthyroidism, diabetes You would have likely had stool tests to check for infections and may have also had screening for inflammatory bowel disease. If you have not been screened for diabetes and thyroid disease then this should be done. In addition, you should also consider a food diary to see if there are any particular foods that cause this problem. I hope this helps