What Can One Do For Severe Pain In The Legs While On Shelcal And Menopace Iso?

recently month back i have been operated as i had a fiberoid in my uterus. my uterus and ovaries have been removed.my previous both deliveries were scisserian. i am 46 yrs old woman.now suudenly i have started feeling a lot of pain in both of my legs. i am taiking shelcal and menopace iso once a day. what is the reason for this pain and wat shud i do???