Your doctor is very behind the times.
Read this website from American Family Physicians from 2003!
http://www.aafp.org/afp/2003/0301/p979.html
a level of 300 is not enough to replenish you from such a low number to start with.
Here is my B12 thread...
http://neurotalk.psychcentral.com/thread85103.html
I suggest oral 5mg a day of activated methyl form (probably your doctor doesn't know about it either

) on an empty stomach, and get retested in 3 months.
The link from AAFP has studies to show oral works. I believe it is far superior to injections, because you take it every day, and it is the active form (most injections are cyano form..synthetic and not bio active).
And don't let those patronizing doctors gang up on you! Obviously they don't keep up! On that same link I gave to the B12 thread is a link to Dr. Snow's B12 work.
http://archinte.ama-assn.org/cgi/con...ll/159/12/1289
Quote from the end of article:
Quote:
As discussed above, patients with Cbl deficiency may have overt neurologic disease in the absence of hematologic findings. Patients with neurologic symptoms and signs and a normal complete blood cell count require a modified diagnostic approach because of several considerations. First, folate deficiency is an unlikely cause of neurologic disease. Second, the neurologic disease of Cbl deficiency may be irreversible if treatment is withheld or delayed; because Cbl therapy is nontoxic, the risk-benefit ratio favors treatment in questionable cases. Finally, an apparent response to therapy (or lack of response to therapy) is less definitive in ruling in or ruling out Cbl deficiency than is the serial measurement of abnormal initial hematologic parameters. Even in patients with a normal complete blood cell count, it may be worthwhile to monitor the MCV after treatment because a significant decline within the normal range provides additional evidence of Cbl deficiency.
An approach to the diagnosis of Cbl deficiency in patients with isolated neurologic findings is outlined in Figure 4. Relevant to the development of this algorithm is a study23 of 419 patients with Cbl deficiency, 12 of whom had serum Cbl levels greater than 148 pmol/L (200 pg/mL). All 12 had elevated levels of serum Hcy and serum MMA. Five patients with normal serum Cbl levels had neurologic disease, and 1 of the 5 had a level greater than 221 pmol/L (300 pg/mL). All 5 patients had a clinical neurologic response to Cbl therapy and normalization of metabolite levels.
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Give that article to your doctor and husband if you must. Using oral B12 would put YOU in control...and it costs pennies a day.
In regards to your Vit D... if you are using the RX form 50,000u D2, be aware that this does not work well.
Here is a thread with medical videos on Vit D and how to get your results from D3, OTC... near the end of the thread is the newest information about D2 being 87% less useful than D3 for supplementing:
http://neurotalk.psychcentral.com/thread92116.html
Since you have already been tested, you can supplement yourself, and retest in 3 months. Vit D requires magnesium as a cofactor, so if you are low in that success with D3 may also be lower than you expect.
Dosing for D3 is approximately 1000IU D3 per 10 pts you need to increase.
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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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