I've taken about 5 different birth controls in my life and have NEVER had any side effects... until now. Quasense has made me so unbelievably grumpy, tired, and hungry... and I'm losing my sex drive without reason. I almost lost my job the other day simply because I was cranky beyond belief. I'm breaking out like I'm 14 again. I'm gaining weight that took me SO long to lose in the first place. And I feel like I'm going through menopause; HOT, cold, HOT, cold. YUCK!!! I'd have to say that Yaz (name brand) and Alesse(sp?)- a generic brand (not a generic of Yaz!)- have been the best ones I've tried, so I'm switching back to Alesse. I'd rather have a period once a month than have all this negative crap with "less" periods a year. It's not worth it. Seriously. I suggest you ALL try something else. Yaz is name-brand AND cheaper than Quasense AND Seasonal! Good luck to all of you- I'm switching back today!