I really had a terrible experience with yaz. I am glad I found this website because I see that a majority are having side effects and I don't feel so alone. In first month ok but very angry,anxious, moody. Between packs i felt horrible.Had severe headache.High blood pressure and called doctor and landed in emergency room for possible stroke. fought with boyfriend and was psycho on it. i was told by doctor to stop taking Yaz. it took me a month to feel better and get my blood pressure ok. i am normally happy,healthy and well adjusted with no health problems. I finally feel like myself after 1 mo.It may be ok for some people but i think something is wrong with Yaz for most people.