I have been reading with great interest these links. I always test high for Vit B12 and they always say, "Oh you must be taking supplements" I tell them I am not because I have too much, or so it seems and they just do nothing. But it looks like one may have a deficiency that shows high B12 because it is not processes? I have a lot of neuro symptoms, neuropathy in hands and feet, emotional, eating problems......but all brain scans are normal. Can this be a deficiency? Should I see someone new? What kind of Dr? These posts are really making me think.