Fellow Celiac here (doing OMAD) - I can’t speak for what’s normal re: ED (probably best to get advice from a doctor), calorie restriction (be at a deficit of what you burn - look up a TDEE calculator for a general estimate). What I will say is that I don’t really have cheat days. I have 1-2 days a week I’m more flexible with my sugar intake but try my best to eat a balanced diet. Gluten free foods (those processed) typically have higher calories than their gluten counterparts- sticking more to naturally gluten free foods have worked best for me. My “sugar” days are days I’ll typically eat processed. Lastly, if you get glutened - you most likely will bloat and immediately appear heavier on the scale - don’t worry about it as the weight comes down as you heal. Good luck & wishing you the best.
My best tip is this:
When hunger cravings become unbearable, there are three really great things you can do to stifle the craving. Straight up chug a glass of water, switch up whatever activity you’re currently doing, or workout/yoga.
Water will fill you up, just do it.
Watching TV, sitting at the desk, reading a book? When the craving hits, get up and do something else. Something that requires a bit of attention. A hard change in activity refocuses your mind.
Working out, especially yoga, really halts a craving. I find the meditative qualities very soothing and fulfilling. Normally a 25 minute yoga session will stave off a food craving for at least another hour or two.
These also work great for quitting smoking as well.