A1C under 6= no diabetes, really.
Once you are diagnosed with Diabetes, it remain with you forever. There is no permanent cure of Diabetes and Blood Pressure so far. I have A1C under 6 but that doesn't mean my Diabetes is cured. If I deviate from my current eating and exercise pattern then A1C will start rising once again.
What you are talking about is the possibility of it coming back. Yes, maybe you will still have partial insulin resistance and this stays.
There is probably no peripheral neuropathy, retinopathy and nephropathy, etc. with A1C lower than 6.
In fact, 5.7-6.4 is usually considered pre-diabetes and below 5.7 is considered normal.
My doctor says that I don't have insulin resistance but my beta cells are capable of processing blood sugar if I control my weight or control my eating habit. I have A1C of 5 when I take one carbs meal a day but that causes weakness too. I have my A1C gone up to 6.3 when I deviate from my controlled eating plan.
I am too scared of nephropathy since my father has CRF and he died because of that.
, I posted it to tell everyone that DM can be controlled without medicines also.