Okay so my endo at my last appointment told me I was more than likely LADA due to my c-peptide continuing to drop so quickly and that I am underweight and my blood sugars are becoming harder and harder to control. My c-peptide last March was 2.7 with a BG of 131 my c-peptide in Decemeber was 1.5 with a BG of 137 so it dropped 1.2 points in only 9 months. He told me that my A1C of 6.1 was excellent so I did not have to go on insulin yet. Okay but what I do not understand is the antibody testing.. he tested me for islet antibodies and it came back negative. Did you guys have the islet antibody test or GAD? IF the islet antibody test came back negative then would the GAD come back negative as well?? This is confusing to me.. by the way I do have hashimotos autoimmune thyroid as well.