Hello Lee! I was type 1 for 62 years with no insulin production. When I started using human insulins I gained weight, and started using type 2 meds along with my insulin. I was diagnosed with insulin resistance. Like you, I used Metformin. I lost the weight and no longer need type 2 meds. Type 1 for a total of 68 years now.
Are you still using insulin? If so, how many units each day? Maybe you are using Metformin, exercising, and carefully choosing low carb foods...and not using insulin.