I started the Nuvaring Friday afternoon, by Sunday I felt overly emotional, crying. I first chalked this up to that I haven't been on any hormonal birth control in a few years, and that it should go away. Now it's Wednesday, and I have had nausea, and this weird muscle spasm above my left knee. I'm tired, cranky, feel like I have bronchitis in the chest, and at my wits end. I'm calling my doc office when they open today. Has anyone had these muscle spasms?