Breast discomfort

Patient: I am 50 white female been hormonal inbalance for 3 years beeen in menopausal hx of 1993 hysterectomy..left ovaries but severe menopausal recently placed on hormone patch working great!! Just lately been experienceing major breast pain espically around the nipples can’t even lay on by chest too lumps just had mammogram all normal last month.. what could this be??