@RaypEagle
If thyroid were the sole limiting substance that keeps your blood sugar from being absorbed and metabolized optimally, which by that I mean you fully get into mitochondrial respiration, blood sugar would not go up as much and as high as it used to, and this would negate the need for the pancreas to secrete a large amount that it used to. This large amount of insulin signals the liver to convert blood sugar to triglycerides in order to lower blood sugar. But the amount of insulin secreted by the pancreas is not always perfectly calibrated to give a drop in blood sugar that keeps blood sugar from reaching too low a level, and your blood sugar may stay at a low level long enough to trigger hunger before blood sugar levels start going up (or not, as in your liver not having glycogen stores that gets converted to sugar by adrenalin).
Having T3 made available would get your blood sugar from dropping to the low levels that trigger hunger.