Can I suggest you read this page - I had a similar question, and was surprised to find that caffeine can cause breast pain. There are other answers here, its worth reading.
http://health.msn.com/centers/menopause/articlepage.aspx?cp-documentid=100096408
When your breasts are in the first stages of growing they can be especially sore because of the intense growth.
Developing
No were not sure what causes it
Injury or illness
Puberty causes breasts to grow fast to prepare you to have a child.
I am just a nursing student, but my advice is see your primary care physician a.s.a.p. Nipple discharge is not normal and should be looked into. Are you doing self-breast exams? Have you/your partner noticed any lumps in your breasts? Have you had any weight loss? Do you go for a regular mammogram?
Hormones are released in the body and several things take place including the growth of breasts.
You Breasts won't grow, but you might grain weight around the tissue of your breasts, this causes your breasts to become over large. Breasts as made mostly of adipose[ fatty tissue ], so naturally overall weight gain will result in larger breasts.
A painful lump may represent a cyst. However, to be on the safe side, get a check-up with your physician, and a mammogram.
dropping of the breasts is a natural process that happens to most all women at certain stage of their life. it happens when the nipples fall below the crease of the breast. ezinearticles.com/?What-Causes-Breasts-To-Sag-or-Droop?&id=769777
The condition that describes an excess of prolactin which causes the breasts to produce milk spontaneously is known as hyperprolactinemia. This can be as a result of normal body changes during pregnancy or diseases that affect the hypothalamus.
AnswerIf it comes and goes you may realize that it only happens before, during, or a little after your period. Also, you may be pregnant. If you are a teenager or young adult it is probably because your breasts are still developing. All of this is perfectly natural and is supposed to happen. If none of this applies to you and you find no other cause, you should go to the doctor ASAP and request a mammogram. Contrary to what is talked about, it is possible for even young people to develop a tumor or possibly even cancer in their breasts. It may just be a hormonal issue your doctor can treat.