That's good you moved your appointment up. I think it's time for another c peptide(fasting and non fasting) and antibody testing- just check out melitta's blog for more info on adult onset of type 1. These are the tests to get for antibodies:
glutamic acid decarboxylase autoantibodies (GAD), islet cell cytoplasmic autoantibodies (ICA), insulinoma-associated 2 autoantibodies (IA-2), and zinc transporter 8 autoantibodies (ZnT8).
Make sure you get ALL of these done because the most common one for type 1 adults to be positive for is GAD, however some aren't and are positive for one or more of the others.
You have a strong history of D so it could be either, but I'm guessing adult type 1.
I will message you :)
ps. I would try eliminating wheat and gluten, I have pretty much eliminated that and it has helped me. For instance I can eat jam & berries but if I have one slice of toast I will spike 9 times out of 10 no matter what I dose for it.