I can't eat

Hi! So I'm gonna go straight into it, I don't like food, I can't eat anything for breakfast and barely lunch. I'm always trying to eat but I end up feeling like I'm going to throw up. It's even worse when I feel anxious or depressed. It happens that i don't eat for the entire day. At firstI just started eating more healthy food but now it's taking over. I don't know what to do, so help....