You have read an old post. There's a lot since then. If you can, find my messages.
I've had 4 spinal fusions, the last S1-T11. My pain is mainly in my feet, at the worst it was progressing to my knees. Long story short, my new neurologist found my vitamin B6 was high so I stopped it. She also started me on Nortripyline which has decreased my pain significantly.
That's where I am now. I hope this helps. Go back and search my name if you want to read the whole story.
Good luck