Here's another article about this I found interesting: US News World Rep. 2000 Apr 3;128(13):50-1.
The wisdom of the gut. Those butterflies in your stomach are not just in your mind.
They refer to the gut as the second brain and defines IBS as being a malfunctioning of the big brain or little brain, or both, or someplace in between. It also talks about some meds that may be helpful. Im sure they have been mentioned on these boards I will have to look them up: Lotronex, Imitrex, Clonidine..