Yes Ibs and bad heaackes and FMS all go together sorry hope this has helped
Been diagnosed with fibro for abt last 8 yrs. and I have these spells every so often. Get gassy, constipated & passing only small, pellet -like stools with pain in thighs ( inside ) and back across hips. Sometimes have burning in mouth, esophagus and in abdomen as if I have a lot of acid.. Until I get bm's regulated again, nothing seems right. I suspect that I don't drink enough water may be one cause.---- something that is easy to remedy if i just remember to do it.