I eat and eat until my stomach physically hurts
What is your reason for continuing to eat even through the pain?
I like feeling pain and I want to keep doing whatever makes me feel like this.
Overeating does more harm than good, so if you find yourself overeating then your better off stopping. The food would probably be better eaten another day when you feel more hunger.
I don't give a shit, I'll over eat until I feel like I'm going to puke.
This is just going to make everything else more difficult in your life. You will feel much better if you just eat the normal amount of food so you have adequate energy. Overeating will cause you to feel like a sloth.