John
Hi If I was you I would go to gastrointerologist and have a colonoscopy done. It is one of the only ways to know for sure. I have had Crohns for 30yrs. If it is Crohns you should be having rectal fistulaes(spelling) they are holes in your colon that drain. If you haven't had those then you might have something else. I hope so. I wish you best of luck. But get it checked out don't suffer needlessly. John