Hi, I was diagnosed as having diabetes 6 months ago, suspected to be type 1, on small dose of insulin to begin with. C Peptide - low side of normal, islet antibody test - negative, was waiting for the gad test results and eagerly anticipating a definitive diagnosis....just came back and nurse said 'GAD is 75'. So, a positive result and I said type 1 confirmed then and she said, no, it's lower than we expected so it is still inconclusive!!! I have no idea what 75 means or how to calculate it (forgot to ask her on phone). They have told me to stop the insulin altogether to see how things go. I have and for the last 3 days my readings have been lower than ever (constantly into the 2 and 3 ranges). Have no idea what is going on and neither do they. I thought that ANY presence of the GAD antibodies meant you were type 1. (I'm 56, bmi 22, typical diet is 60 ish carbs per day), all the symptoms of type 1 when diagnosed including ketones. Any thoughts?