I've had IBS for about 10 years, but this past year I started to experience some base of bladder pain. No urgency involved, no bladder infection, nothing my MD or OB/GYN could find wrong. The bladder pain differs in intensity from mild discomfort to severe on different days. It usually preceeds some D or gas. Does anyone else have anything like this? I can't find any reference to plain 'ole bladder pain in the books I've read.