thanks for the info and video mrsD. Dean had his b12 checked on 4/4/13 and was 504. folic acid was 9.6 I started giving him a 1000mg b12 tab daily. No one in his family has neuropathy that we know of. He remembers as a child running a low grade fever all summer, but doesn't recall being treated for it. His parents didn't believe in going to the dr. unless you were dying. tough old farmers! waiting to see another neurologist for the neuropathy. hopefully he will have some answers.