Last month I started to feel pain in my right breast. It lasted for almost three weeks. Though I sometimes felt pain my left breast it is not as consistent w/ the right breast. I thought it is due to my menstruation and yes the moment my period start the pain goes away. But right after my menstruation the pain in my right breast is back extending to my armpit and sometimes to my back. Im only 30, and never consulted my doctor yet since i thought after my period the pain would stop. What should I do?