I am not on it for BC, but to help with my severe cramping during my period. I had only been taking this for one week when I started experiencing chest pains, horrible cramping as if I have my period, extreme breast tenderness, sinus problems (nose is constantly running - almost instantly after I take the pill), lack of lubrication and drive, extreme fatigue, vision problems and leg cramping. I'm glad that I now realize that it must have been Yasmin, as everyone is experiencing the same problems. I stuck with it for 2 more weeks thinking it would subside, but it has only gotten worse. I am calling my doctor today to get something else.