I know exactly what your going through. I went through this same thing around the beginning of October. I let it go on for about a month and a half before i realized that i REALLY needed to do something about it. I felt like i was gaining weight although i never weighed myself.
Right now, i use the website: www.******.com to count my calories. It helps out alot! I actually saw how much i was eating and that was my reality check. I should NOT have been eating that much. So that was what helped me to realize that i need to eat better.
You'll get over your cravings, don't worry. Try eating a small snack that will fill you up, like oatmeal, around midday. That should help