"i was on yaz for a year. i have to say overall i loved it. i didn&#039;t really have any mood swings that were out of the ordinary for me, no spotting or weight gain, no problems at all really. except, shortly before i got off it and switched, i got a blood clot in my right arm. it was very painful. i am a smoker and knew the risk, but i loved yaz so much that i was willing to stay on it. i switched at the request of my husband. for whatever reason the blood clot did not scare me, and it went away on its own. but i am yet again switching my pill because what i was switched to after yaz is just not cutting it."