Please tell me why this always happens to me and how can I stop it

I have an eating problem, but it's not a normal one. I starve constantly even after I eat. An example, I work up yesterday starving, thought I was going to vomit from how hungry I was, ate a piece of cheese and I was OK. I had some things to do so I really didn't eat, but when I got home, I ate a decent size salad and I had 2 large raviolis and I was stuffed, literally sick, stuffed. Sat there for a few minutes and I swear it was only 10 minutes later and I was starving again. So, I ate another ravioli and the hungry went away. But the rest of the night went the same way, it was like I went from starving to stuffed, there was no getting gradually hungry to starving, it was just like - BAMM - I'm starving.

Same thing this morning I woke up swear to God I was going to die of starvation. I had some toast and I was fine. 45 minutes later I'm at work and I almost vomited from being so hungry, so I ate a cup of noodles - my lunch and a candy bar, because the noodles didn't fill me up. That was at like 8:00 by 8:30 I was starving again and I don't have any more food - so I've been eating cough drops, and I feel like I'm going to be sick. Probably from eating cough drops, I do sort of need them.

The worst part is lunch isn't until 12:30 and I'll die before then. I just can't figure out why I'm ALWAYS starving. Am I dying? Can it be a medical problem?

FEED ME!!!!!