Four weeks I suffered with terrible back/stomach pains, which at the time I put down to constipation/trapped wind. Yesterday I started with bad stabbing pains in my lower back, it was painful to pass wind, and agony to go to the loo. I started with really bad period pains, and was getting sudden urges to wee, which was also painful. It also became painful to walk. I felt like everything was 'falling out' and my legs became achey. I managed to get a bit of sleep with the help of a hot water bottle. Today i woke up in pain and tried to get appointment at doctors, earliest was 27th April. Spoke to NHS direct who advised me to go to A & E. 3 hours later i was sent home with constipation! I dont think it is. My mum had endometriosis and she suffered for years. She had the same symptoms. A urine test showed blood but no sign of inflammation. The pain has eased a bit now, it is more just below the breast bone, I feel really drained. I am 31. Any advice would be great. Thanks.