I started using Yasmin one month ago after using Yaz for a year. I had no problems on Yaz, but have had a multitude of problems that I believe are related to Yasmin. One of the side effects I'm having that I don't see listed by anyone else is insomnia. I am 45 years old and have never had any problems going to sleep initially or when I wake up to go to the bathroom in the middle of the night. Before Yasmin, I would get up once in the middle of night to urinate, and now, I'm getting up 4 or 5 times a night and then sometimes, it takes me an hour to go back to sleep. I have also been feeling depressed and more anxious than usual. During the second week of Yasmin, I had gastritis that lasted for about a week. Gastritis is something I typically get 3 or 4 times a year, but I'm thinking it's another side effect caused by Yasmin. I've also had more nausea and bowel problems this month than normal. I have breast tenderness and I had unexplained rib pain for a few days. Finally, my belly seems to be more bloated than normal. I have an appointment with my doctor tomorrow and I WILL be switching to another pill.