I've been taking Yaz for about a year now, and I've noticed that I am not as irritable as with other, less expensive pills. I also have experienced reduced pre-menstrual breast swelling vs no pill, and my mild acne has disappeared. I did encounter nausea when I took it in the morning, lasting for about 8 hours. I addressed this by taking the pill at night, and I either do not experience nausea at all or maybe I just don't notice because I'm sleeping. Taking it at 6:30pm every day works well, though it is harder to remember it. I set my cell phone alarm.