Pain is not a common. Symptoms of cancer, but it calls your attention, and then the doctors may do other things that detect cause, or even cancer in a part of the breast. The nipple-aroela complex is the most sensitive portion of the breast. The safe call is to always get something that bothers you seen by someone with more experience.
Get checked. See doctor may need mammogram and ultrasound.
Maybe. I don' t know how old you are, whether you are breast feeding a child, and this and other factors make a difference. However, if you are having pain anywhere in the breast, including around your nipple, you should see a health care provider.