Had a sharp pain in lower right abdomen for 18 months. At start was passing blood (2 months) but not any more,. Had CT scan, MRI scan, ultrasound scan and 2 colonoscopy all of which have not shown anything in that area. I have given up fibre which has improved pain massively. Started to eat fibre again and pain went worse again. IBD doctor and GP unable to diagnose. I was diagnosed with UC in 1997 and had about 10 flare ups since. 49 year old Male. Currently taking mesalazine.