I was on the ring for about 10 months. I experianced: headaches, breast tenderness, fibroadenomas & cysts " detected on ultrasound ", mood swings, & irregular periods with constant breakthrough bleeding. I have had trouble ever since. I was taken off the ring in late summer of last year and I have had problems with every other birth control pill since. I have tryed 2, including the one I was on for years before starting the ring. Now, over a month since I stop the last one, I am still having symptoms. I don't have to be on birth control to experiance systems of PMS/Pregnant anymore. The difference between what is going on with me and pms is that it never goes away! It never stops.