Started Nuvaring last month..figured I would give it some time to work out the side effects I was having...leg cramps, backache, dizziness ( I am a phlebotomist and almost fainted 3 times at work), I got so hot and had to take clothes off, I was so irritable I would cry for no reason. I just didn't feel like myself...I found this site thank God and I took the ring out tonight. Since I have taken it out just 5 hrs ago I now have no headache anymore and my leg cramps are gone. This just did not work for me. Thank you everyone for posting your issues, it good to know I wasn't going crazy & am not alone. Best to all of you :)