I went on the pill because my periods were very irregular. I was on Yasmin for two months altogether. One week I thought I had the stomach flu because I was throwing up. I had quit throwing up for about a week and then I started throwing up again. I also had horrible headaches and I didn't before I started taking it. I called my OBGYN and she said to stop taking them immediately. I too was also constipated. She then prescribed the NuvaRing, which I was on for two months. I wasn't throwing up anymore, but my headaches were still there. I was 22 and had a bad stroke. I was paralyzed on my right side. With therapy I was able to move my right side. My doctors are not sure what caused it, but they did say that the birth control pills are what pushed it over the edge. I am lucky to be alive. I believe birth control pills can have different side effects on everyone and there are side effects with almost any drug. However; there are a few side effects that are common to almost everyone who takes that particular drug. In the case of Yasmin, it seems bloading and constipation are common.