I am not sure what my PN is from either, I have an idea. It's either my hypothyroid or pre-diabetes, which I have diagnosed MYSELF because the doctor only checked fasting and it was a 90 which is not considered high until it reaches 100. However, I bought a meter and found that my numbers spike up to 189-245 when high carb meal consumed. My research has shown a person has usually had diabetes for several years BEFORE a fasting number reaches 100.

Anyway, all that to say, I have theories but the cause is still unknown for sure, but treating symptoms is a priority. I got on thyroid meds, and am keeping my glucose readings below 140 at all times.

My biggest relief? Finding out about Benfentiamine! Within 2 days of starting it the burning in my feet improved 90% and after a month or so still gone, occasionally I have flare ups but still, this supplement has been a God send, and no doctor helped me find this.

Also, I would NOT say you had high B12 levels at 1,000. My number is 4,000 and I supplement every single day because it helps. Throw out "normal" for B12 and listen to your body.

Good luck, it's all trial and error