Hi Tom, I don't have the pain with my neuropathy, just numbness and some tingling in my legs and feet. I also have degenerative disc disease and some issues with leaning forward while walking which is similar to bent spine syndrome or camptocormia. I kind of suspect some of it's due to my age of 81 but my bride of 59+ years has told me I walked like an old man when I was in my late 40s. There may be something to your feeling that the neuropathy symptoms are due to spinal issues. I know when I wake up my symptoms are somewhat less in my legs and get a little worse as the day goes on so I also think part of it for me is due to the compression of the spine while I'm upright and maybe it's getting some relief laying flat at night.

You might find the following discussion interesting if not helpful, especially the first few posts with a video link and a few other links with good information by @jenniferhunter.
-- Myofascial Release Therapy (MFR) for treating compression and pain:
https://connect.mayoclinic.org/discussion/myofascial-release-therapy-mfr-for-treating-compression-and-pain/