I discovered that if you become overstuffed, and don't spend any stamina you will never leave the overstuffed state. I've been crawling around a cave at 0% overstuffed for about 20 minutes now.
It isn't something urgent that needs fixed cause it can't help you gain stats any faster our anything like that, but this could be abused by newer players so they never have to eat. Maybe it was intended this way and I was just misinformed.