Please help! I have been diagnosed ibsc and suffer from lots of pain and bloating. However the last 2 weeks i have suffered from the most awful headache and nausea. Everyday I think it is better and then it gradually comes on until in the evening I don't know what to do with myself. I would rather have the pain and bloating than this. (Which I dont have at the moment!) Is this linked to ibs or is it somehting else? My chest and muscles and joints ache as well. (I don't have flu as I have periods of a few hours where I feel ok).