Okay so... My breasts have never been perfect of course. No ones are. One was always bigger than the other. When I was 130 & 5.9' the size difference wasn't so noticeable. I've gained a lot of weight maybe 20 or 30 pounds and grown an inch I believe. I'm now 19 and the size difference is noticeable .. My right one is more developed, bigger, rounder, lower. Left one is more high up and pointed, and a lot smaller .. My right one continues to grow & develop causing stretch marks .. But my left one isn't. The weird thing is .. I get pains in my left boob rather than my right. It hurts and gets really sensitive. I've always had sensitive breasts but my left one is more sensitive than the right. Why is it that my left one is the one hurting & sensitive, but my right one is the one that keeps growing ? Is that normal ?