I can't take it anymore

Starving myself, eating "healthy" foods, etc. has done 2 things for me. 1) Made me gain 10 pounds and 2) made me starved, angry, and craving a half gallon of vanilla ice cream. In the past week I haven't eaten over 1600 calories in any single day, yet I have gained 7 pounds. What the heck, is my scale broken?