Unless you’re diabetic, you probably haven’t taken your blood sugar with a glucose meter. Taking your blood sugar, or having your doctor do it, could help you determine if you have some insulin resistance. If you’re carrying more than 30lbs of excess fat and having trouble getting the weight to come off with a healthy diet and exercise, then you MAY have some insulin resistance.
Have you ever felt sluggish a couple hours after a starchy meal? Of course you have. And your first instinct, since taking a nap may not be practical at the moment, is to eat again to try to regain some energy. Generally the choice, or craving, will be for another starchy food to get your blood sugar back up.