Barely eat but never hungry?

Britt
I'm eighteen years old, one hundred and fourty five pounds and five feet and five inches. I'm supposed to be consuming at least 1,400 calories a day, but I consume five hundred calories at most a day, along with exercise so that's really three hundred calories. Yet I'm never hungry. I eat maybe a meal a day. What's wrong with me? And I'm terrified if I force myself to eat, I'd gain alot of weight because I used to be one hundred and sixty nine pounds before I stopped boredom eating and now I'm never hungry!