Hi, I have been suffering with back pain since January, and was recently admitted to hospital with rectal bleeding and severe abdomen pain. I had a sigmoidoscopy and an MRI and both were fine. I was then discharged from hospital with no diagnosis. I feel dreadful after dinner and have to lie down for half an hour, I am tired, my stools have changed, I have no energy and have problems going for a wee. I have also been having problems getting an erection and have breathlessness. Drs keep saying its anxiety but I feel it could be IBS as I have noticed my symptoms are worse are after eating certain foods. Does anyone have any advice on how to get a diagnosis? I have never felt so poorly and just want to get back to normal. Thank you.