I was diagnosed last month with Bile Acid Malabsorption having had IBS symptoms for years. Apparently around 1/3 of IBS sufferers have undiagnosed BAM which can be successfully treated (if you're lucky!) with drugs like Questran. I thought I'd flag this up in case it helps someone else, but also wondered if anyone else had experience of Questran. It's working to an extent for me - diarrhoea not happening so much anymore but I'm still getting awful cramps so still really miserable with it all. Back to gastro in another month but fed up of being awake and in pain for hours every night.....