This problem runs in my family. I was a C cup by the time I entered junior high. And we have way to many D's in our family to count. Ugh! And my youngest sister is more like you I think. Only she is shorter. She is about 5'1 and a size 2 or smaller. But she has to think about what she wears carefully. There are just certain things we don't wear. And we have accepted the stares. (Our aunts are the same way). My dad has described his personal experiences of what happens during surgery. And it is not pretty. Nor is the recovery. But I know this is something I will have done eventually. But it won't be until it is neccessary. Like back pain, or if they start hanging down around my knees.
My advice would be to not put yourself through it until it is neccessary. But going and getting a doctor to explain everything to you would be informative and might alter your decision.
What I wouldn't give to be able to jog in public!!