I've had a lump on my breast for about a year now- or at least that's when I first detected it. The lump is incredibly firm and more or less fixed. It's easy to spot and even protrudes a little bit when I feel around my breast. A year ago, I was merely experiencing slight breast pains so I didn't think much of it given the fact that I'm young/hormonal/whatever. Recently, however, the pain has become really sharp and does NOT abate. The degrees of the pain vary, but I feel a nonstop constant discomfort in that breast.
This lump is definitely pronounced and abnormal. I'm eighteen years old and am really frightened. There's a bruise underneath my breast now where the lump is. Breast cancer runs in my family. The lump feels like a ball. It's slightly bigger than the size of a marble.
Could this be a cancerous tumor? I'm very worried.