I actually found more info about what I believe happened to me, and great detail on how this cluster of symptoms related to rapid A1C reduction differs from the PN typically associated with diabetes.

An article titled 'Treatment-induced neuropathy of diabetes: an acute, iatrogenic complication of diabetes' was a good starting point as it also references other studies and sources with further detail.

Here is a link for the curious: https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4285188/

I found some hope in that there may be considerable chances of reversing some of the symptoms, based on my (perhaps optimistically biased) reading of the data.