I was diagnosed with IBS when I was a teenager and am now close to 40, so I have been living with this problem for quite some time. I have managed to keep it under control most of the time with accupuncture and Bentyl. Five years ago I had to go on disability for chronic back problems that I now have as well. I have had spinal fusion surgery and have 4 herniated discs and arthritis in my tailbone and sacral joints. I am in chronic pain from my back problems but what ever pain medication I have tried has only made my stomach pain much much worse. Can anyone suggest a pain medication that might not upset my stomach?