I've never personally experienced one, but a guy I used to be with had one. I tried writing down here some things he would do, but it's incredibly upsetting and I don't want to put anyone in here in a bad place emotionally.
So I will just leave it as saying that although I can't empathise, I can see how eating disorders absolutely do take over your life.
I hope you all find the strength to recover, that you're not afraid to ask for help, and I hope one day you can have a happy, healthy relationship with food and with yourselves. Good luck.