Pain is a major feature of IBS, so I do not know if they differentiate out how much pain you are in vs just calling it IBS-C. (if you were constipated without pain it wouldn't be IBS, but functional constipation or something like that...IBS is BOTH stool issues and pain...and you can have pain without stool issues as well).Usually for pain you are talking antidepressats, antispasmodics, or mind-body therapy types of things.I had mostly pain with some stool consistancy frequency issues (other way, but not bad enough that I would have seen the doctor...the unrelenting pain was another thing).Buspar helped the pain some (and may help you with anxiety) so it may be something to discuss. The biggest help for my pain was Cognitive Behavioral Therapy.K.