I am a 64 year old male with debilitating lower left groin pain after exercise or when there is stool in the bowel. I was first diagnosed with diverticulitis, but a CT scan revealed no infection and only one diverticulum. I was next diagnosed with the need for a hernia repair, which I had, but it did not impact the pain. I was told I had nerve damage and was sent to anesthesiologist for pain control and had shots in the scar tissue, but with no positive results. I was also sent to a gastroenterologist for a colonoscopy and though they removed one polyp, there was nothing else of concern. I then went to a specialist in Dallas who wrote a paper on nerve damage subsequent to hernia repair and he told me there was no nerve damage. I have a history of kidney stones, so was sent to a urologist and had a kidney X-ray and bladder scope, and although I have some stones in my kidney, the urologist told me this would not be the cause of my pain as it is too low in the groin. I next had an MRI and was told my prostate is enlarged and has nodules and I need a biopsy, but again was told this would not be the cause of my pain. The MRI did not find anything else wrong and all doctors have said they can't help me. What do you suggest I do next to diagnose the source of this pain?