How does it feel to be a fat kid in your childhood?

I was an overweight child since my birth and continued to be so during my growing-up years too. I was a butt of jokes, used to be ridiculed, nobody bothered about my emotions. Also because of the excess weight I refrained from participating in sports, trekking, and missed out on doing a lot of other fun stuff that kids of my age did. My confidence and self-esteem hit an all time low by the time I was in my teens. I had promised to myself that I would never allow my kids to be overweight and go through the same.