Why is it that i don't have a big appetite? i eat only two sizeable meals a day and eat some fruit. i also drink a lot of water. i live a sedentary lifestyle, i sleep at 3am and wake up at 2pm. my meal time is eating at 3pm and then 9pm. concerning?

If you have not lost weight, you are eating enough for your level of activity. You may be sleeping too much. For healthy diet: http://www.choosemyplate.gov/., exercise 30 minutes/day, drink enough water daily so your urine is mostly colorless, have safe sex, no tobacco alcohol weed or street drugs. Get HPV and Covid vaccines. Wish you good health!