Have you been under alot of stress recently? becuase i know with me, i dont eat food at all in college or in the morning, im just soo stressed with a lot of courswork and exams right now i just dont have the stomach to eat food, when im at college, before and after. For some odd reason just looking at food makes me seem to not like it, i.e yesterday i saw some gawjuss strawbery cheescake, and opted for a carrot instead. Does any of this sound similar to you? For me though, after a stressfull day, when college is over, etc and ive done my work/and homework, my apetite comes back like a monster.
Just give it some time, and it should come back.