Frogman:
If you aren’t already accustomed to overeating (and bingeing,) you have to train yourself to do so. This can be challenging at first but once it becomes habituated, eating until you can barely move feels less uncomfortable. (That’s not advice, just my experience.)
You’re not only expanding your belly and body, but also your definition of what “full” means. Eventually you get used to feeling “full” most of the time—so that becomes your normal, comfortable state which facilitates more overeating and bingeing which makes you fatter.
And if you wake up with your belly as big as it was when the food coma began, then you’re definitely seeing some results :-)