endometriosis
"I have been very happy on this birth control pill for about three years. I am only switching because I want fewer periods. Before I took this birth control my periods were horrible. I had every symptom in the book. This birth control did cause slight weight gain, however I also went on it when I turned 18...so it could have been metabolism slow down as well. My breasts also grew, no complaints here about that though. I don't get cramps, moodiness, headaches, nausea, or severe stomach upsets with this birth control. Also my period is like clockwork every month....until recently when I endured a lot of stress. I do still get slight stomach upset and bloating along with slight fatigue. All in all it is an amazing birth control!"