I am a Registered Nurse, I am 35 years old and I have been taking Yaz for about 1.5 months now and have had an overall bad experience and now reading all of other's side effects, I think I will be taking myself off of it. I have horrible fatigue and extreme weakness, I am a runner and for the last 2 weeks have had difficulty finishing my runs without dizziness and almost collapse. This in itself is depressing but I also have noticed the depressive symptoms are worse than the symptoms of depressive type emotions I exprerience with PMDD. PMDD is the reason I sought out a treatment and they suggested this, not very happy with it. I also have breast swelling now with tenderness and very low libido and extreme need to sleep, sleep and sleep. I also am irritable and angry with outbursts much of the time, I can't deal with this anymore and I will be ceasing the regime. It is nice to know that others have the same type effects, especially with the exercise intolerance. I also have tremulousnous and general fogginess of thought. Well, thanks readers for your shared info. A.Wilson