Weight causes depression

When I was in seventh class I we the best athlete in my school but after a year everything turned upside down and because if some health issues I was admitted in the hospital and was injected with bottles of glucose which turned me fat and fat……….
Later I was overweight and one day my aunt started comparing me with her weight and made fun that her and my size of clothes are same. She used to give her old kurtas (indian dress). After which my self esteem was going down. She never let me wear shorts and tops and told me to wear Kurtas,after which I losed all my self confidence and I used to wear loose clothes as she said wearing those my heaviness can’t be seen by others. After that she compared me to her daughter who was thin and can wear whatever she wants to , after that I thought I have to do something I stared eating less and once I was thin which was after my class 12 exam I became conscious that I should not gain weight now and I limited my diet and used to eat very less and started throwing up whatever I ate this goes now also. I know this is wrong but I can’t control myself throwing out that less food also. I know it had a very bad effect on my body. I always eat food by reading the label about the fat. Now one thing struck me: why are we judged in this way? Why only thin and lean people enjoy life.
I don’t know if I will stop throwing out my food, but try my best just thought people should know it so that they know how can few of their small actions and words affect others.

Ps: my parents never said anything about weight but they never stopped my aunt also