Welcome to NeuroTalk:
The amount in a multivit of B12 is not really enough if you were low to begin with.
You should get tested again. By the time MCV in your blood test shows up abnormal, you may be very deficient.
Here is a B12 thread with all the explanations, how to use methylcobalamin orally and why:
http://www.easy-immune-health.com/Vi...e-Effects.html
People very low in B12 have similar nerve symptoms to MS patients.
I think you should follow thru with new testing. And while you are there, get a Vit D test too. Low levels of this are very common as well.
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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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