I'm on my third month of Yaz. I got on Yaz to clear my moderate acne and so my cramps weren't as severe. I have noticed a slight weight gain and increase in appetite. My sex drive has almost completely diminished. For about two weeks of the month I find that I'm spotting and get severe menstrual cramps (which I have to treat with ibuprofen several times per day). I get extremely moody out of nowhere and I find myself getting tired more than I ever used to. Overall, I wouldn't recommend this product unless you are specifically treating moderate acne. My complexion hasn't been so clear in years.