Stereotactic Core needle biopsy

I just had my stereotactic core needle biopsy this past Monday. I was told I would only feel pressure and not pain. WELL, the pain was so intense, I screamed and jumped at the first (burst). I spent the rest of the time crying like a baby. No doubt, it hurt like a you know what. after dr shot me 3 more additional times with the lidocaine, it was still painful but more tolerable. The stinging pain for the next hour after it was done was so excruciating. On Wednesday, they called with good news that it's not cancer but they want me back in 6 months. Now 5 days later, my breast is so swollen my nipple is inverted. Mass was behind my nipple so that part is painful to touch but not as bad as before. The bruising is horrible and looks like I was beat. I do keep a sports bra on for binding as it helps. Also still putting ice on. I hope I never have to do this again. But, with my mother passing from breast cancer, I feel my stakes are a little higher. My question is, with 3 bad mammograms and one resulting in a biopsy, I'm wondering if I should consider mastectomy to avoid possible future breast cancer. Also, how can I get the BRAC? test done