--it would be more appropriately posted in our Spinal Disorders forum, as opposed to this one that tends to get more traffic for more systemic neuropathies.

Still, none of us are excused from being multiply morbid, and you may have more than one thing going on. There's even a term for this--"double crush phenomenon"--in which a more systemic cause for neuropathy is exacerbated by compressive injury, such that the symptoms may be more than the sum of the parts.

Have you had other testing for more systemic neuropathy etiologies?