Honey, we all did that and felt that way!!!!
If it helps you to stop all the gorging, think this way........3 weeks post op you can eat again, until your first fill. So no real need to do the last meal thing.
That is what got my through the rough pre-op diet and stopped the overeating. Then, when I was 3 weeks post op and able to eat again, I didn't feel like gorging.
So, in short, use whatever means you need to stop the overeating now. Then, when food time comes up again, find another way to get you through the hard times.