Thanks for the update. At least you've finally ruled out any myotonic disorder. Many things can cause the peripheral neuropathy including MS. But usually you would have had some visual problems by now if it was MS.
I'm taking Acetyl-L-Carnitine and R-Alpha Lipoic Acid for the severe neuropathy I got from West Nile Virus years ago. It has worked wonders. You can get them online from several stores including SwansonVitamins.com.