If you have no other nerve symptoms anywhere else, I would not think you have B12 deficiency.
If you decide to take B12 which is rather benign, you could start at 1000mcg/daily on an empty stomach.
I'd add in magnesium to your supplements and fish oil. Both work with B12 and B6 to repair myelin.
This is my magnesium thread:
http://neurotalk.psychcentral.com/thread1138.html
Avoid magnesium OXIDE...it does not work.
Healing peripheral nerve damage takes some time. But it does happen.
http://emedicine.medscape.com/article/1270360-overview
you have to join Medscape to view, but it is easy and free.
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All truths are easy to understand once they are discovered; the point is to discover them.-- Galileo Galilei
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Weezie looking at petunias 8.25.2017
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