Mel,
Just a few more things to consider . . . try to take your B-12 apart from any other vitamins, medications, food, etc. Best way to maximize absorption. I would also suggest that you don't add anything else right now - this would be the best way to know if the B-12 makes a difference.
If the burning gets worse, you might try some other topicals that contain menthol. Biofreeze has never worked for me but some others have. I would second Mrs. D's suggestion of magnesium and thiamine, but would hold off for a bit if you can.
I tend to agree with you about seeing a neurologist and so forth . . . I think it is very likely that any neuropathy you have will get blamed, rightly or wrongly, on your diabetes. It will be worthwhile to see someone down the road who would take an in-depth look to see if there is any other possible cause for neuropathy. And of course there are other reasons to get a proper workup. I say this only if things stay as they are . . . if your sxs change significantly, then you will just have to get seen sooner.
rafi
Oh . . . someone was asking about where to get methyl B-12 - - many of us here (I have absolutely no connection to this place) use an online source that has a very wide selection at great prices:
www.iherb.com