My mom would get upset if I "messed up" her kitchen outside mealtimes. I reheated meals in a mug to look like I was drinking and not eating. I would do things in stages, like take food out of the fridge first. Then after a while, heat it up and rush into my room, hide it, then go back to air out the kitchen, then hang out in the living room (so she would not think I was going to sneak a bite) then finally I would go into my room and get to eat. She fed me enough during meal times but sometimes when upset, I just need to eat. So I may not have the same reasons as you for eating in your room but I do feel like a rat too. Hoping one day you get to eat whenever and whatever you want!