I often get a sharp stabbing pain in my right breast. It usually happens when I have not been stretching or have been hunched over. Stretching and taking deep breaths (though it hurts like a ...) will help. If that is not it, it could be growing pains? Both of my breasts used to have the exact same pain when they were growing (not that they grew much ... I'm still teeny lol!).
could either of those be what's going on? I've had the pain last for an entire day.