244 is significantly very low. The ranges are very old and no longer acceptably valid.
Lowest norm in US is 400, and in Japan it is 500 (because Japan had a huge drug scandal that caused crippling/deadly events for 10's of thousands of their population in the 70's, so they are much more aggressive with B12 than here).
I would start on 5mg oral methylcobalamin daily on an empty stomach and retest in 3 months or so. This should bring you up considerably, and then you can see if it is working for you.
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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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