I was just wondering whether anyone else developed IBS after having a stomach virus. I had a stomach bug this past April, with attacks again in May and June, and since then I've been struggling with bouts of nausea and (occasionally) diarrhea--which has been diagnosed as IBS. The nausea is worse than the D; it feels like a fist clenched inside me, just above my belly button. I'm not even sure I have IBS. One reason is several people I work with have, starting this past spring, been struggling with symptoms almost identical to mine. I only have about 30 coworkers, and for 4 of us to have the same exact problems at the same time seems like too much of a coincidence. But maybe we all had the same virus, then all got IBS from it? Any ideas?