Thanks for your answer :) . Thats true, I'm trying to eat healthy.. (:
The pain went away, when I squeeze it, ... to check for lumps, i kind of feel a pain, I'd be relieved to know they are growing.
I'm 76 lbs too. I have a problem gaining weight too. And yeah..
As you have only had your period for about 12 months and small breasts I would put the pain down to hormones and the possibility that your breasts will still be growing. My breasts got rather tender when I was going through puberty (long time ago) and they were growing. If you are still concerned or the pain becomes unbearable go see your doctor.