When you do ANYTHING against your body's will, you are indulging disordered thought.
"Ouch, this hurts... I should keep doing it", a man says, whilst putting his hand into a fire. "Is this normal?, he asks you. Well, of course you're going to tell him it's wrong, and he responds with, "You know, I kinda thought that all along. It really is painful."
Only, he just keeps putting his hand into the fire.
You plead with him to stop it as his hand gets more and more charred, more scarred, as he says "I'll stop soon. I'm nearly there."
Nearly there? What does that even mean? What is he trying to achieve?
He makes all the excuses he can to keep putting his hand into the fire, but in reality he knows it's wrong, and even HE doesn't know why he continues to do what he's doing. It's long since past time for him to hide, excuse himself, or otherwise conceal or deceive others from what he is doing.
"Do you think my hand is charred enough?", he asks you. Like he's getting proud of this insanity, or feeling some sense of achievement in it. Only every other person watching on only sees a spectacle of horror, of complete inability to comprehend or understand why he would do this to himself. There is no attraction, no glamour, apparently no upside to doing what he's doing, yet he continues to burn his hand in the fire as everyone around him tires of trying to help, trying to offer solutions, as he seems to ignore their every word.
THIS IS WHAT AN EATING DISORDER IS, AND IF THIS METAPHOR RINGS EVEN VAGUELY TRUE, YOU KNOW WHAT I AM TALKING ABOUT.
All you're doing... is sticking your hand into a flame. There is no "I am not burnt enough yet", there should be NO element of "burned". It's wrong in any volume, to ANY degree.