Ryoten,
I'm so sorry to hear that you are having issues. I think I can speak for everyone when I say...we don't wish this on anyone. I have had Crohns disease for about
30 years and have experienced my fair share of pain. To me the pain has been almost "clawing" in feeling. I would describe it as that scene in Aliens when that monster pops out of that guys stomach. Or as if Freddy Krueger was trying to claw his way out of me. But pain is different for different people.
Crohn's Disease is a cronic disease that can effect any part of your digestive tract. Irregular bowel habits are common with CD but also with many other diseases. It is
good that you are doing the probiotic thing. That seems to help a lot of people. One important thing to remember with CD is that, in many people, stress can aggrevate the disease. Try not to worry. (I know... easier said than done).
As for you hospital question. I have checked myself in. But again different people deal with pain differently. I personally have been told that I have a pretty high pain tolerance. If you feel like you can't deal with it anymore, by all means go to the hospital. Good luck and I hope you feel better soon.