Btw, I already know the answer to your question of "why do I still have pain after my back surgery?". As a matter of fact, that is kind of a naive question to ask. It's because after having 3 successive lumbar surgeries, your chances of success drop from 90, then 50, down to 30%. You are then put in the category of what used to be called FBSS - failed back surgery syndrome. The updated term is PSPS - persistent spinal pain syndrome. I am clearly in that category. If I have a 4th surgery, my chances of it being successful are only 5-15%, but unfortunately, the neurosurgeons and orthopedic surgeons rarely tell you about these statistics. I'm now left with either finding an opiod that suits me better, or maybe trying an SCS... which after trying a DRG stimulator, I don't hold out a lot of hope for.