Oh Dear Whitby, of course that is what it sounds like...but the first thing you need to do is see a gastroenterologist and go thru all the testing to rule-out any other GI problem you it might be that can be more directly and positively treated. Of note in your case is that you are already on an antidepressant (for something else) and you still have these symptoms.Some antidepressants actually help IBS. Maybe once you are diagnosed (and IBS is the diagnosis) you can switch to another antidepressant to see if as a side-effect it helps the IB. Best of luck to you.