In 2011, my B12 was 337 & I was put on methyl B12 shots & felt better. New doctor had me do cyanoB12 shots & I felt no improvements. I asked him by phone to order tests for B12 anemia & he wants to talk in person ($200 visit) because he doesn't think all the tests are necessary & that they are expensive. Where can I order the tests, on my own, that are needed to rule out B12 anemia? Thank you!