I underwent a L4-L5 discectomy and laminectomy three years ago. When I awoke in the recovery room I was amazed: the pain that had been such a part of my daily life for so long was gone! It was almost as if a light switch had been turned off.
In the last year before my surgery, I underwent nerve blocks; saw a physical therapist; saw a chiropractor; and exercised...all in a fruitless effort to forestall the inevitable. I wish I had just gone ahead with the surgery sooner...
It sounds like you too will have to have surgery. Good luck to you...and remember to follow your doctor's instructions to the letter!