307 is too low still. After all that, it appears you need more not less.
You can choose to use oral on your own. You should be at 400 minimum, or higher.
Here is a B12 information thread, with medical links in it:
http://neurotalk.psychcentral.com/thread85103.html
Some doctors are just not up to date on B12 treatment.
Oral works, if you take it correctly. Use active B12 called methylcobalamin and on an empty stomach. That link I am giving you is medical CE for doctors to update their treatment protocols. It is from 2003.
I'd do 5mg a day for 3 months and see how you test out.
B12 is transported into the spinal cord fluid, and dependant on higher serum levels than you have. Delay just means delaying getting it into your nervous system!
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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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