If you don't expose yourself to numbers (scale or calories). I think you'll be ok.

You can safely do this by working with a dietitian (and probably a psychologist). The professional(s) should hold onto your numbers. Don't weigh yourself, don't count calories. Just do what they tell you to do.

I have never been able to identify if I have an eating disorder or not. I have never looked in the mirror and thought that I was a land whale, or felt guilty for eating a normal amount of food (though I do feel guilty after particularly absurd cheat meals).

I do have some form of disordered eating going on, and I don't like seeing the scale go up (without a DEXA scan I have no idea if it's fat, water, or muscle). So, I avoid it. This occasionally leads me into trouble. I exercise A LOT. If I start slacking and not eating enough food, the pounds come flying off. I unintentionally lost 4lbs before I knew it over the past month (due to not weighing myself/my food, and simply eating to satiation and trying to pick healthy things). I got on myfitnesspal to plan out my next week's meals to make sure I had enough calories, and then I closed it, because I know what I need to do and checking in with it every day is not productive.