Family vs. self confidence....?

I feel like society isn't as much as an influence over the way I feel about my body as my family is. When I was younger, about 7 or 8, I would get laughed at cause I was too bony by my cousins and grandmother and her friends. By the summer I was 11, I was 160/170 and they would say I was getting too fat and say I had an eating disorder. By the time I was 12 or 13, I had lost almost 40 pounds and didn't eat a lot. Now, whenever I do eat, they comment on it. Whenever I don't eat, they comment on it. It seems like I can't really catch a break. Has anyone had similar experiences?