If you go every hour for more than a couple of days I'd go to the doctor. For a few days can be a GI infection (virus or food poisoning) and they can happen to anyone.The problem is if ti goes on too long (especially if water) you can get dehydrated and that could be a problem and more than 10 BM's a day may be something other than IBS even when chronic.Until you can see the doctor have you tried Imodium?