I get really nervous before I have to do a presentation or go out with people for the first time to the point where I need to have sometimes several bowel movements before the occasion and yet I still feel like I have to go. Is there anything I can do/take to counteract these problems. It is really quite discomforting. I also read the person's post about bowel movements before work, and I have done the same everyday for the last month since I started my new job. Usually it's just regular bowel movements for me but sometimes it is diarrhea.