Is is possible to develop breast cancer at fifteen? What are ...

Hello folks.
I am a15 years old female and I have recently discovered a small lump in my left breast ( about the size and shape of a M&M). I?m especially concerned about it because my grandmother lost her breast to cancer, which means it is in my genes. Is is possible for someone so young like me to develop breast cancer ? Is there certain symptoms (occasional pain in the location, drowsey? etc)?

Source: http://cervicalcancerx.info/is-is-possible-to-develop-breast-cancer-at-fifteen-what-are-symptoms-of-having-breast-cances/

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