I have been on the ring for over a year. I have had no problems but I searched the internet to do some reasearch on it and I read about a lot of women having problems with there mood and feeling depressed. When they stopped the ring they felt like themselves again. However these side effects might go away, they recomended that you stay on it for about three months and if they don't go away then try something else. Good luck with everything, search around a bit there is a lot of info out there!