Try taking vitamin B12 injections (not pills). Vitamin B12 helps repair muscles and nerves.
My B12 levels were low normal, my neurologist had me taking B12 vitamin pills that didn't help. My primary care doctor recommended B12 injections, I take an injection every 1 to 3 weeks as needed. It doesn't make the pain go away, it makes it more tolerable, still have periods where the pain makes it difficult to walk. I feel my feet more with less sensation of walking on air. Unfortunately, I still fall down, my legs will buckle under me and I fall backwards. The falling may be related to my neuropathy, seizures, cardiac issues or all three.

I'm 72, sometimes feel 90 but still appreciate God letting me stay here a little longer.