HI,
I think your are suffering from eating disorder.Eating disorder is a group of condition characterized by abnormal eating habits it may involve either insufficient or excessive food intake.
This are some points which will help to prevent eating disorder:
1. Genuine awareness will help you to avoid mistaken attitudes about food.
2. Avoid categorizing food as good,safe, dangerous.
3. Stop judging others and yourself based on body weight or shape.
4. Make a commitment to exercise.