I have felt a lump under my left breast close to the ribs. I can't feel it with my hand but when I move a certain way or bend over I can feel something there. It's like its getting caught or something. It's not painful but just for a second. It just feels like it shouldn't be there. I am 37 years old and have no history of breast cancer in my family. My sister had kidney cancer and my dad esophageal cancer. I have never had a regular period and have always had awful menstrual symptoms. I had my first period at 11 years old and have never had children. Have there been links between lumps near ribs and breast cancer?