Blood sugar / glucose monitor?

And some of the stuff isnt covered for me until I'm on the needle! WTF?? Not covered as preventative? Again here we go with pharmaceuticals lol.
Yeh, but what I'm seeing you have to be "BEING TREATED" for diabetes before they will pay. Using it as a borderline "preventative" tool does not seem to buy you in I'm pretty sure I ask'd my doc about this