Sounds like your pain is similar to mine. They did a CT scan on me. I have a pinched L5lumbar nerve. Pain orinates in back, goes across my behind to my left hip, down the outside of my leg and crosses over to the right side at the ankle. I had one nerve root block which gave great results but the procedure was not fun and those great results only lasted for a little over two months. My back x-ray shows such spinal problems that at my age, no surgery, really no help. I take Neurontin when it is really bad in the evening, but only when I have to. I hope that your problem is not as extensive and that you get a diagnosis that is treatable.