I have been on Yasmin since June and I also thought I was going crazy. My mood swings were fierce and I was bitchy as all get out. My husband says that now I have PMS and I've never had that.
I've gotten headaches, had absolutely no energy some days, painful menstrual cramps, and it seems like I bleed more than normal on my periods. I have also gotten acne and I woke up this morning with a huge pimple on my chin. I used to never have acne.
After finding this site and realizes I'm not the only one with these problems I'm not taking another pill. I'll call my doctor for something else.