Jimmy, I’m hoping you’re doing well and have found reliable information that you feel good about. By now you’ve found out more about your back and If you have an L-7 that would be very odd. Most folks have L1-L5 and then S. I am thinking you should ask about having your nerves treated by radiofrequency treatment. I had that done and It helped so much. It was a start and helped momentarily. I am so sorry about your cancer and now the pain you’re in. I had back problems…then melanoma. Remember, Mayo is such a wonderful place!