Crohn's Disease & Ulcerative Colitis Support Group
Crohn's disease is a systemic inflammatory bowel disease (IBD) of unknown cause, that results in chronic inflammation of the intestinal tract. It can affect the entire gastrointestinal tract from mouth to anus, and can also cause complications outside of the gastrointestinal tract. There is no known medical or surgical cure for Crohn's disease, but there are many medical...

If its just a one time occurrence I wouldn't be worried. Elsewise I'd call your GI doctor.
Hope you feel better soon.
For the diahrea you could try Colostroplex Colostrum. I had a acupuncturist oversee and direct me on how much to take, but then I got used to adjusting myself. I guess I took it for about 3 months all together. IT's not expensive and won't hurt you. For me it firmed things up and lessened the runs.