How to pursue potential misdiagnosis?

[CottonCutiePies]

Which is why a definitive diabetes test is based on a 3 month average (A1c) rather than an immediate finger prick test.

When I was diagnosed in 1989 it was via the dreaded glucose tolerance test. Now its diagnosed differently. Upon being given steroid injections I was told by the specialist giving it, to forewarn when having any blood tests.