15 years old,breast cancer, please help?

Okay, so what are the chances of a 15 year old having breast cancer? There's no major family history of any cancer. But, I just want to know exactly how likely it is, and what are any symptoms? I'm scared, please help? From what I've read about it, it seems..possible I have it, but I'm not sure. show more Okay, so what are the chances of a 15 year old having breast cancer? There's no major family history of any cancer.
But, I just want to know exactly how likely it is, and what are any symptoms?

I'm scared, please help?
From what I've read about it, it seems..possible I have it, but I'm not sure.
Update: The breast I'm worried about doesn't hurt, or discharge anything, but its bigger than the other, and there's no, distinctive LUMPS, its like, kinda overall lumpy.

If that makes sense.
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