Thanks for the replies. I did take Dilantin for many years. I know some meds are hard on the kidneys. I haven't had a blood test on them in a couple years. I will look into having levels checked for Vitamin D.
As far as my "core" being bad. He compared it to an electrical wire. He said the outside sheathing was fine, but the inside wire, ( maybe he didn't say core), was the problem that I had.
I see some folks suggest taking Omega-3 for the nerves. I'll start with this. It can't hurt

Gene