As usual, the interpretation of this dream depends on you. You may be concerned about your looks and fear that you are becoming fat. Be realistic in regard to this area of your life.
If you are very thin and can not stop worrying about your weight, you should see a doctor. Psychologically speaking, obesity usually is a sign that the individual has issues with self-esteem and personal power. In dreams about obesity fat emotionally insulates us from others and isolates us physically. ... The Bedside Dream Dictionary