I’m pain free for the first time in 5 years. The last bit of my serious pain (8 mos) appears to be piriformis syndrome which creates a similar nerve pain to my back trouble but I could still walk. Pre back surgery I couldn’t walk. In retrospect I probably had PS pre surgery.
This helped me a lot. Internet PT with PHD
https://youtu.be/VH76dMUSmIs
https://youtu.be/pWowPQ_3Coo