GP has asked me to book for bloods, which will be HbA1c and assorted other tests. They've never included some which are thought important, for example, for Vitamin B12, which Metformin is meant to deplete, or Magnesium, a common deficiency. I have been below par and with higher BG readings lately, so hoping tests will reveal reason. Can you suggest any other tests which are important for T2 and complications, but which tend to get missed? Thank you.