"i originally started taking yaz for birth control, but instantly noticed that my face cleared up.  yaz works wonders for acne, and i highly recommend it.  however, it made my emotions go crazy.  i became very anxious.  i was on it for a year and then decided to get off of it.  my anxiety decreased but acne slowly came back.  now i am going to try it again for acne and hope that i can cope with the anxiety from it.  i&#039;m out of school now so i&#039;m hoping this makes it easier to cope with the side effects.  also, i did not gain any weight, and my boobs grew a full size.  it&#039;s a myth that birth control causes weight gain, it only causes increase in appetite or causes you to crave a certain food (i.e. sugar) which in turn causes you to gain weight"