Quite, in fact, it usually happens in most cases.
Maybe because your a guy and every normal guy loves breasts, but i really think you shouldn't do this if your in a conversation with a girl, they like guys who look at their face when they are talking to them not the guy looking at their breasts.
It is normal for your breasts to get larger as you grow.
Swelling and tenderness of the breasts around ovulation time can be normal.
No.
depends on when you started puberty.
Yes. As breasts grow, it is normal for them to be tender or a bit sore.
You can have a doctor examine your breasts at any age. If you feel there is something about your breasts that is bothering you, don't hesitate to ask your doctor to check them out. They will be able to tell you if your breasts are normal, or if they need further evaluation.If you are asking about what is the age that a woman begins annual mammary exams looking for breast cancer, then it would depend on the particular person's medical history.
Yes.
Yes
yes
Yes
Yes, it is completely normal, especially if you are athletic.