I had elevated B6 and B12 without taking supplements, and neither my primary care or neurologist seemed concerned. I am scheduled to be blood tested in December again. I have eliminated sugar from my meals, stopped my metformin pill, and increased my exercise activity, hoping this all helps. They will check my A1C, my immunoglobulins, and B levels ...I will keep all posted. Also, I have had three chronic sinus infections this year, each lasting 8-12 weeks, between the neuropathy in my feet/legs and sinusitis, I think they are all connected somehow. After 11 days, I am having some improvement in my neuropathy. I will keep all posted. Thanks.