And the number was 411. Normal range was 200-950 I think. I have been doing some research and people say you don't have to be anemic to have a deficiency so I asked my neuro about taking supplements. She said that I could take b12 but it really won't help because my large fibers are unaffected and that if I was deficient in this, then my small fibers would be spared. Wow, ok that was awkward. Pretty much, she said b12 supplementation only helps large fibers, not small. Is this true? I couldn't really find an answer anywhere. It just says b12 protects the myelin sheath (for large fibers as small fibers don't have any myelin). Would I not benefit from taking b12 (methylcob)?