Has anyone experienced dizziness/fainting as a symptom of IBS? I have dizzy spells during the day that seem to correspond with periods of gassiness or the urge to go....but not always. I guess I truly can't decide if my dizziness is related to my IBS. I haven't fainted to date but there are times when it feels like I might. Does anyone have any suggestions? I feel like I'm losing control of my life and I'm deathly afraid I'm going to faint at work or while driving. Just looking for any advice. I've had IBS for 2 years now and while my bouts with diarrhea, constipation, and gas have improved my dizzy spells have not.