your period could be around the corner...

Are you sure??Kinda sounds like you could be.

Could just be hormones.

Hormonal fluxuation and/or change in diet can do this. So likely Rin is on the money with her answer.

I'm going to need to see picture of them to give you an informed opinion.

send a picture i might be able to tell :P JKJK ok ummm well how old r u?? iff ur yungish like 15ish it could be ur breast tissue is growning and then inflaming (getting swollen)

Well ,,, what about period ??? you will be sensitive and tender,,, Have you done any sever sport lately, (running, horse riding ) and didn't wear a suitable sport bra? other wise (maybe they are expanding a bit (as we get older) :)

Are you sure your not pregnant? Most of the time that is the case.

Erm.... Okay, lets see... I've done a lot of reading on the female anatomy (mostly because when I do become sexually involved, I want to make her feel as good as I can, since HER pleasure matters more to me than mine) and I've come across a few things about this... One; are you taking birth control? It can (and probably will) have the effect, depending on brand. Two; Usually, according to some recent studies, it has been found that a woman's breasts stop "Visual" growth at age 25, but they grow slightly (and as much as to a full cup more) up until age 35. This is only common in those women who haven't become pregnant at that point, though in some cases; losing virginity will keep it from going up to 35. In other words; They grow until age 35 if you haven't become pregnant, and are a virgin (though, as I said, losing your virginity only RARELY keeps them from growing to age 35). Its all in the hormones. Oh, and another thing; women, who want to be a mother bad enough, can experience a "false pregnancy." During pregnancy, a woman's breasts reach their maximum size (usually). During false pregnancies, you could just experience the breast growth, or the full pregnancy (minus the baby). I know of two lesbian girls that went to my high school. One suddenly became pregnant (which was weird, since both had told each other they were virgins) and the non-pregnant one accused the pregnant one of sleeping with a man. She denied it. Well, doctors came to find that she was indeed a virgin... And she went through the full 9-month process that from what I heard ended like a blend between a miscarriage and a period. (in such a case, one or more eggs are released). Both of the girls dropped out because of all of the attention and rumors. Even what I know I heard by "spread of the word," but I saw evidence of some of it... I don't believe rumors without evidence.