I do not have IBS, but wasn't sure which topic to post under. I apologize if my story is a bit graphic. Saturday evening I did have intercourse, which was a bit rough, but I did not have anal sex and never have. Afterward, I was somewhat sore in the vaginal area, but I was not worried and though this was due to a lack of lubrication. The next day I noticed blood in my stool, and there was blood in my stool again today. I am 23 and have never had any symptom like this before. I do have Interstitial Cystitis, which is chronic inflamation of the bladder, but I didn't think the bloody stool would be related to this. I'm starting to really worry and am getting scared.