I have been taking Evista por over 6 years. This past week I had my first infusion of Reclast for my osteosporosis. I got the chills , very strong ones, on the day I received the medication. Also tiredness and pain in my back and muscle pain. But my doctor told me I no longer needed to take Evista once I had my IV. I have not been able to sleep well since the day I stopped taking Evista and feeling uneasy. I am 64 years old and had a hysterectomy at 45. Please advise.