Low appetite. Full after small meals.

Hi all,

I will be taking my fourth shot of 2.5mg tomorrow. I am 6'1 male. SW 233. CW 216. Goal 180. TDEE 2600-2900 (I think)

Fasting came naturally so I do 16 or 18 hr fasts. I get full very fast. I had minimal side effects if any at all.

On an average day I eat 80-120 grams of protein. I do light exercise as well.

My only struggle is that some days I cannot eat more than 1200-1300 calories. Some days I get up to 1700-1800.

How bad is such large calorie deficit say 2-3 days each week?

I feel great. No fatigue or other signs of malnutrition.