Endometriosis
"My doctor prescribed me this birth control to help with the pain of endometriosis as  mine was getting to be very painful. The first couple months were rough, nausea, vomiting, terrible mood swings to the point of crying at commercials! I stuck with it though and eventually levelled out. It really helped with my periods and the pain to the point that I went from calling off work for periods to barely noticing them! They lasted 4 days and were not heavy or terribly crampy. BUTTTT..... I have been on it for about 2 years and now I am getting side effects again in the form of terrible head aches every day, zero sex drive and terrible cramps during and in between periods. Also my periods have gotten heavy again so I am going off it."