Yes.

Deprival of insulin is torture.

Even setting aside the very real risk of life-ending ketoacidosis, high enough blood sugar is pure suffering in itself.

Many aspects to it. The nuances are horrific; For instance. the amygdala is wired with blood glucose sensing capability and processes blood sugar alterations as foundational threat markers. Directly.

It is known that elevated blood sugar nukes sensory nerves and capillaries.

This is torture. Literal. physical torture.

(Source: A loved one just barely escaped death due to a badly missed T1D diagnosis. It's torture.)