"i have been on yaz for 6 weeks. i know that isn&#039;t very long to make a judgment about it&#039;s effects on acne so i&#039;ll give it the benefit of the doubt. though it really has not helped my acne at all, i cannot conclude that in the next month or two it wouldn&#039;t help then either. my issue is that the side effects are really discouraging. i have been so tired almost everyday and my energy is low. i&#039;m a fitness fanatic but my workouts haven&#039;t been as good because i&#039;m so tired. i&#039;ve also been more depressed and my appetite has most definitely increased. i have had some mild nausea. i noticed an increase in gas and bloating. my breasts have also been extremely tender and swollen."