I'm 12 and little is that normal?!

I'm 12 and little is that normal?

I'm 12 and weigh 72 lbs and I'm around 4ft is that normal?
My bff is so much bigger than me but shes the same age.

Ya that's definitely normal ( i hope)...I was around 75 pounds around 13 years old :) My best friend was around the same thing. And neither one of us was anorexic or bulimic. We just happen to be little. It might be genetics and you might experience a growth spurt later on.
Besides, small people rock!