Please help me I am 27 years old I am overweight but appears to have no bearings on it. For about the last 8 weeks have had diarrhea one day all day then the next I am fine going to the bathroom the abdominal pain is all the time. Also after I eat the upper left side of my stomach feels like someone is stabbing me. Not to mention its gotten worse now because I feel the pain even if I dont eat. Also I am tired after doing any type of work and if I move around it starts to hurt too. The lower side of my pelvic areas hurt to,especially before and after bm. I know this sounds gross but I have had colonoscopy, CT scan, biopsy, ultrasounds and the doctors treat me like I am crazy but I am in pain. Please help if you have any idea.