@jesfactsmon, @sunnyflower, @stefspad, @keb, and others searching for vitamin B6 information. The following links were posted earlier in the discussion but I thought I would repeat them here in case you haven't seen them.

Vitamin B6 Toxicity
http://www.easy-immune-health.com/vitamin-b6-toxicity.html
B Vitamins for Neuropathy and Neuropathic Pain
https://www.omicsonline.org/open-access/b-vitamins-for-neuropathy-and-neuropathic-pain-2376-1318-1000161.php?aid=90896
B6 section it explains — too much or too little gives neuropathy
https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4199287/
FDA Safety Alert: Biotin Can Affect Medical Test Results
http://cle.clinic/2G6Mp4y
NIH – Nutritional Neuropathies
— https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4199287/

Vitamin B6 Toxicity Revisited: A Case of Reversible Pyridoxine-associated Neuropathy and Disequilibrium. (P4.021)
— http://n.neurology.org/content/90/15_Supplement/P4.021