Hi @nemo1, It can be a struggle trying to get a diagnosis and a treatment that helps. What has helped me is learning as much as I can about my neuropathy and possible treatments available that might help which is what I think you are doing also. You mentioned having chronic nerve damage in lumbar and cervical spine which can be a cause of different neuropathy symptoms. Some of the easiest to understand videos I have found to help me understand how the different neuropathies are diagnosed are by Matthew B. Jensen, Assistant Professor of Neurology, University of Wisconsin. You can see all of his videos on his YouTube channel here - https://www.youtube.com/@MatthewBJensen.

If you haven't already seen this discussion started by @jenniferhunter on Myofascial Release Therapy (MFR), you might find it helpful.
--- Myofascial Release Therapy (MFR) for treating compression and pain: https://connect.mayoclinic.org/discussion/myofascial-release-therapy-mfr-for-treating-compression-and-pain/.

Here are a few other discussions started by members on their journey for a diagnosis that might also be helpful.
--- Diagnosed with Peripheral Neuropathy, or not??: https://connect.mayoclinic.org/discussion/diagnosed-with-peripheal-neuropathy-or-not/
--- Learning Past Cause vs. Quality of Present Life?: https://connect.mayoclinic.org/discussion/learning-past-cause-vs-quality-of-present-life/

Here's a video that might provide some information to help understand what's going on...
https://www.youtube.com/watch?v=kWO8jzsDq-8