Chronic diarrhea could be due to IBS but certain other disorders that also cause diarrhea should be excluded first. Such disorders are intestinal infections, malabsorption syndrome, ulcerative colitis, Crohn’s disease etc.

IBS is a functional disorder (has no organic issue) that can be diagnosed when all the organic possibilities are excluded. You need several diagnostic procedures to find the real diagnosis but most valuable in your case would be a colonoscopy and microbiological examination of the stool.


Chances for you to have IBS are good because IBS is related to stress and anxiety and you already suffer from generalized anxiety disorder and panic attacks. It doesn’t seem likely to me that medicines caused your diarrhea. I believe that if you treat your anxiety the IBS will also calm down.