I have been on NR for about three years. It has been the only form of B/C that I have used after having my daughter. I did not learn until here recently that it may have been the cause of my problems. I noticed that I had no energy and that my sex drive had disapeared completely. I consulted my Gyno early this year and he ran some indepth blood tests to try and figure out what my problem was. He did this twice. But the tests showed that there was nothing out of sorts. The lack of sex drive got so bad that it was effecting my marriage. So, I knew that the NR was the only constant factor since I had my daughter, so I decided this week to stop using it. I have already seen an increase in my energy level and my sex drive. I have been in a better mood since removing the ring. I plan to go back to my Gyno and discuss the matter in full detail.