What are some of the causes of breast pain?

D.F. is a 27-year-old female who presents to the gynecologist’s office for her yearly examination complaining of bilateral breast pain and tenderness. Subjective DataLast menstrual cycle: 18 days agoPain is dull painBreasts feel heavy and tenderPerforms monthly breast self-examinationsObjective DataBreasts moderate size, evenly pigmented, bilaterally symmetric, and hang equally with smooth contour. Venous patterns bilaterally similar. Breasts firm, smooth, elastic without tenderness, lumps, or nodules. Areolae round, nipples protruding, symmetric, soft, pliable, smooth, and intact without discharge. Axillary lymph nodes are not palpated.1. What other questions should the nurse ask about the breast pain?2.What are some of the causes of breast pain? 3. What is a supernumerary nipple?