"i&#039;ve been on yaz for a year and a half. before i was ever on birth control i was very calm and a very easy going person. ever since i went on yaz i&#039;ve been overly moody and angry all the time. i&#039;ve lost my interest in doing anything new and now my husband and i fight all the time. i also bleed irregularly and have constant random spotting. on top of that i developed gallstones and had to have my gall bladder removed. the only good thing that yaz has done for me is prevent pregnancy. the only reason i haven&#039;t changed to a different birth control is because i have been overseas until a few weeks ago and the birth control i want was not available there. i have an appointment to change birth control this week."