Hi Mark.

Good that you got a handle on that glucose problem.

Your B12 is not good. The range published for you is outdated, and the new acceptable low is now 400pg/ml. In Japan it is 550!
So your B12 is not "good". You are barely squeaking by with it.
Keeping it at 1000 at least is a good idea for all people with neurological problems.

So pick up some methylcobalamin (this is the activated form) and take 1000mcg daily on an empty stomach. You could do 5mg a day for 3 months, and then drop back to 1mg (1000mcg) if you reach that goal of 1000. Methylcobalamin in inexpensive and readily available now at Walgreen's, Costco and maybe other stores. It is also available online at iherb, and many other discount places. It works out to pennies a day either way.

In your CBC results did you get MCV reported? This value will be high normal or high out of range if you are developing anemia.
It often points to low B12 before anemia develops.

The rule of thumb now for D3 is 1000 IU D3 for every 10 pts you need to raise. A goal of 100 is not reasonable for everyone. Some MS doctors try to get their patients to 100, but I think 50-70 is more reasonable for others.