"very irregular periods, i can&#039;t remember the last time i was not on it. it has been almost a year. bad mood swings no sex drive, acne everywhere lots of abnormal discharge headaches lower back pain tired all the time. the arm i got the implant in always hurts whether its cold outside or not. it is always sore, also weight gain, mood swings pretty bad over little things, emotional all the time. i have had nothing but a bad experience. "