You eat and then wrap yourself into a ball because you're bored. You're also sated, because you ate just the right amount, but now you have nothing to do and it's soooo booooring.

So now you're bored and stuck at home (ほう). You aren't hungry. There's nothing on TV. And you don't want to have to leave your home to do something, even though that would probably solve your boredom problem.