Sir, My Age Is 46 Yrs.my Hystrectomy Has Been Done.

sir, my age is 46 yrs.my hystrectomy has been done. ovaries are there.only uterus was removed. i had developed fibrocystic breast disease. MRI has been done. report is clear. all cysts are benign. my doc has prescribed me tab.sevista 30 mg on alternate days. i had only 3 dozes. i am taking cap.primosa 1000mg daily. since last 8-9 months. i am feeling pain in my right breast after taking sevista. should i stop it? can it increase pain in breast? pl answer this