If you’re serious about fixing it, I have more suggestions.
I wonder if Allithiamine might help you. It is a true lipid soluble form of B1. Sometimes, it can help where Thiamine/Benfotiamine doesn’t.
Do you take B12 at all ?
If you want more suggestions perhaps you should post on ImmInst.org. Generally very helpful.
Thiamine, b6, and b12 are all at good levels now - the daily BF and multivitamin contribute to that. My neuropathy seems to be static at this point, and might even have regressed a little - hard to tell, because I have lost 60 pounds over the past 10 months, and am exercising strenuously - 1000+ calories on treadmill and arc trainer - for over an hour a day. I will see my neurologist in another month or so, and expect him to do another nerve conduction test that will let me know if I am making any progress.
By the way, my glucose thia morning was 85.