eh. i don't have an eating disorder but i'm pretty much constantly on a diet. i suffer from headaches and general shittyness daily but it's something i just work through. i am hungry and i do get cravings, but i find ways to distract myself and keep busy, or i drink lots and lots of water. or i exercise. i feel the shitty physical effects of not eating a great deal but i see the physical effects too and that's nice. my body has also gotten used to what i'm putting into it now so it's not so bad, the worst is hunger. as i said, i haven't got an eating disorder, but i would imagine that it's not really about "maintaining" the disorder when it becomes a way of life that cannot be changed.
i suppose it all depends on how much someone with an eating disorder is taking in.
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i think you're the same as me, we see things they'll never see