Why are my breasts so heavy?

MoonlightWolke
My breasts are so heavy and hurt my back, i'm only a DD36 and weigh like 197 pounds... my back is very sensitive now and so is my neck, im also 5'1, but why is that? and im only 13 aswell..
Updates
+1 y
girls only... please!
Why are my breasts so heavy?
10 Opinion