Hungry!

I'm so tired of being hungry ALL the time! I truly live on cereal! Then when I do eat something, I end up throwing it up. Sometimes I feel like just throwing my food straight into the toilet! I try to hold things in as long as I can but I tend to lose the battle more than I win it. I end up just not eating at all! I'll go 2-3 days and only eat a small bowl of cereal. I wish I could eat a great big salad!!! Wishful thinking!