Not losing weight

38 f, 5’7, 150 lbs. been keto 2.5 years, been keeping my calories at a pretty large deficit (1k-1200 cals) while hitting protein macro(~120 g). Gym every morning m-f for years (cardio M, then weight training T-F).

Recent blood panel showed no hormonal imbalance or thyroid issues. I’m not overweight per se, just gained ten lbs over the last year or so and would like to take it off and I am not. Losing. Weight.

Also not losing inches, either. I’m really, really frustrated. Could it be possible that maintanance is 1000 cals a day?! Been eating this deficit for 2/3 months now.

I’m not starving myself, either. Just eat couple eggs and turkey sausage for lunch and meat/veggies for dinner. Protein powder in my coffee(s) with cream. What gives???