I have to agree it definatly sounds like IBS. Has your boyfrind been under alot of stress latly? That can cause it. Still, go to the doc, just to have it disagnosed. Feeling like you have to go, but it doesn't all come out is a tell tale sign of IBS. Plus, mucus is another one. Another one is alll of the sudden, you have the urgency and cramping to go. However, if there is EVER blood (besides a hemmroid) that is NOT IBS and needs to be checked out pronto.