| LADA is tricky because it is a slow-progressing T1. I, too, was on metformin because my diagnosis was at age 62 and they automatically assume that means you are T2. But metformin (Glucophage) is a very helpful medication as it sensitizes your cells to insulin no matter what type you are.
My "honeymoon" was over after about 1 1/2 years when I opted to go on insulin... first the basal Lantus, then 3 months later, Novolog bolus for meals. But that does not mean that all my beta cells are dead. I have a "squirting" pancreas that works every-so-often. Yours may, too. Going on insulin helps the pancreas to recover a bit. It's a good thing.
As long as your numbers remain good on metformin and Lantus, don't worry about it. If your numbers start going wonky, then add the bolus for meals. If you drop metformin, expect a 1/3 rise in your insulin need. Don't worry about that, either. It's what metformin does...
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NoraWI
LADA (T1)
Lantus, Novolog, levothyroxine
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