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.
Up, down and back up- kind of like a roller coaster isn’t it? Meanwhile these surges of starch or sugar and insulin are likely to be creating surges of fat storage and not really allowing your body an opportunity to burn fat and regulate a more even blood sugar level.