I haven't had my GAD antibody test yet, they will be doing it in the hospital when I have my HBA1C test in a couple of months. However, the diabetic expert GP believes I am a 1.5 not a 2. I have been prescribed Metformin and am testing my BS about 6 times a day before and after meals. For longer standing 1.5 people, how long was it between diagnosis and needing insulin? I come from a family of what was previously assumed Type 2's, (mother, grandfather, great grandmother now all sadly gone, my Mum was only 46 due to heart complications) however I now believe they were 1.5 as all needed insulin within a few years of diagnosis.