I found a small lump on the top of my right breast. It feels like the size of a pimple but is under the skin, no redness, no pain. I ve had 2 lumpectomies in the past year, which revealed ADH, radial scar, and tons of microcalcofications. My breast MRI from March that found my 2nd lump that I had removed in April was totally clear for my right breast, only found the mass on my left breast. I am 25 years old with a 42% lifetime risk of developing breast cancer based on the Tyrer Cuzick scale. I m wondering if this is something I should have checked out, or if I m over reacting because of this past year?