I have only been taking Anastrozole for 3 weeks. I have already started to have side effects like urinary incontinence which I had finally gotten under control before starting this. I also have very bad pain and stiffness at the base of my head and upper body where they meet each other. Had to take a muscle relaxer last night trying to free up the area. Not really helping so rubbing Aspercreme on and taking Advil. Has anyone else had this experience. Thinking I will stop this drug before things get worse. I'm more of a person who does natural remedies so looking to go that route even though my breast cancer with 100% Estrogen positive.