Your DSN does sound crazy, but I don't know if I missed something here but is her ONLY reason for thinking you're type 2 the fact that you take a lot of background? Because that is actually completely wrong- if anything the fact that you have to take a lot of background insulin would suggest you couldn't possibly be type 2. Or are you saying the background isn't keeping your blood sugars down so maybe she's thinking you're type 2 because your body isn't using the insulin properly?