Help!

So yesterday I begged my mom to bring me home CAKE. I had been doing really well on my diet and exercising so I thought that I owed it to myself to gain back any weight that I had already lost in a matter of hours. The great mother that I have granted my wishes and brought me home two cakes, a chocolate one(yummm) and a white cake with coconut(even more yummy) and I ate both and a lot of both! By the way, my mother did not even try a tiny piece or have any feelings toward the cake(what is wrong with her?)...After feeling extremely sick and wishing that I could throw up I told myself that there is no way I would want to eat like that tomorrow. Well, tomorrow has rolled around and im fanticising about the cake. I NEED help and must have a problem. This rainy weather makes me want to eat everything and not think twice about it. Does anyone else feel this way?