I experienced severe chest pains and major mood swings...shortness of breath..12 days i was on it and when i called my obgyn - they said take the ring out and go to the ER. I immediately went to ER...I work at a hospital - so that got me in quicker..the ER doc did a cat scan, ekg, blood work and chest xray - thank god nothing showed up...This birth control was NOT for me and should be taken off the market.