I have had breast pain in my right breast for a few weeks now. The thing is, it is not my actual breast that hurts, it is like the bone under my breast. It is very tender, especially when my 3 year old is wrestling with me. Any suggestions on what this could be? I am only 27, but because of a history of breast cancer in my family, I had a mammogram a few months ago. They did it twice because they thought they saw something, but said that it was just a shadow. Should I be worried?