I've just spent two days with a newly widowed friend who is younger than me but a poorly controlled T2. She has been T2 for much longer than me, so from the 'bad old days' when most doctors had been told T2 was a progressive disease for many of us.
I dressed the open ulcers on her foot, which has already had one toe amputated, after helping her shower because apart from neuropathy she can't see well enough to risk it on her own.
The OP here is actually low carb, as low carb is usually defined for T2 as below 130g of carbs a day - this is not a 'normal' western diet by most standards - but still they are (according to their own posts) experiencing lows and highs, and it is often the swings that do some of the damage.