Oh I had such days in the beginning. ME, the queen of overeating, undereating! It was surreal but abandoning my vegs for meat was already surreal.
Couple of days, I did that. And then I got hungry and had a heavier day. IDK if you will have that but I never can undereat for long. And whenever I see I already had 2 low-cal days, I use my very dense, very palatable items, eat whenever I can, as much as I can or something. I am so experienced, I know what I can use to boost my calories, almost no matter what.
Everyone slims down (oh, that’s so euphemistic in that situation…) while starving, by the way as we can’t make energy from nothing. There may be some odd calorie intake range where it doesn’t happen to everyone, though (I hardly have that as my metabolism is pretty reluctant to slow down, according to my tiny experiences and my SO had the same, he lost fat crazy fast while starving not completely, i.e. he ate just little. but we are simple like that)… But lack of fat-loss shouldn’t be our primary reason to do our best to avoid starvation. It’s not healthy.
Hunger… No matter what they say, you shouldn’t follow your hunger or appetite or whatever blindly. My hunger often goes on holiday. I still need to eat properly. Some people never have any hunger, days pass and nothing. I personally have this “need to eat” feeling, it’s just not accompanied with the feeling of hunger. But when I underate, I truly felt I am fine and practically couldn’t eat more. It was very odd but passed. Oh so passed, I eat WAY more now.
Maybe you can grab some tempting dense bites even without hunger? In the beginning meat easily gave me a stop sign and I often had shockingly tiny meals. So I ate 5 times a day (sometimes), I needed my food… If I can’t eat more at once, I need more meals.
But maybe you should focus on different items. Fattier meat or some extra fat on your food… Probably most of us have more and less satiating, more or less tempting items.