I've had very minor IBS for years now and it doesn't give me too much bother.
Lately though I've had the most horrible cramps and pains, as well as urgency to 'go' and when I go I'm looser than usual, and there is some mucus too. Sorry if TMI!
Last night I had to go to bed early and just curled up in a ball, and today after lunch I was the same. Poor DS had to sit on my bed and watch a DVD while I whimpered and slept on and off for an hour and a half. 
Doc has given me some anti spasm tabs, but so far don't seem to be kicking in, and had me take in a stool sample. I just wondered if anyone else had been through similar, it's really getting me down.