I hope you get meaningful information from your EMG! As for B12, I’ve always been advised that low B12 isn’t good for you, even if you don’t have Neuropathy. I take supplements because I was on the low end of normal and my PCP 5 years ago believed that supplementing would help ease Neuropathy symptoms, so now I test higher than normal, but that’s ok to have with B12. I had a different doctor get alarmed once and told me to stop the B12. Confused, I did, and within days I started feeling weaker. So I started the B12 back and returned to my “normal”. That said, all doctors have told me to shy away from adding B6, that my diet has all I need and with PN, too much B6 is neurotoxic. (I’ve since been learning on here that there’s a type of B6 that’s not harmful, but my personal choice right now is to avoid all of it so I don’t have to read fine print and google whether it’s the right type, but if ever in need to change my regimen, I would look into it) Good luck with your shots and test!