Its sad that your family arent as supportive of you as they should be. Its hard for loved ones to understand what you are going through when you suffer an ED, and i know that its frustrating and upsetting for them too, but i don't know what its like to not have anyone around me so I really feel for you. It sounds like your grandparents are amazing though.
Your story is a lot similar to mine actually. My eating disorder is EDNOS and i got diagnosed with it about two years ago. I used to get a lot of comments about my curvy figure aswell. So i know how that feels too.
I completly feel for you because its so hard to be so sensitive at a young age (i think every girl is to be honest) and to go to school and get picked on because of your changing body. I feel for you even more because you not only went to school and got this but you changed schools three times. That must have been tough and well done you for getting through it.
Im always here if you need a chat.
I think it helps that we both had/have EDNOS and can relate.
How is your ED now? Are you coping okay?