May 2006 I stopped taking Yasmin after being on it for a few years. I was having bad sinus congestion, sinus pressure, headaches and post nasal drip but never thought it was because of Yasmin. I went to a ENT doctor and the tissue in my sinsus cavities was so inflamed he recommended surgery. I also had a deviated septum and bone spur which were corrected. After the surgery (August 2006) I felt great. I exercise A LOT and it was now so much easier because I could breathe without all the fluid buildup. I kept thinking what a miracle the surgery was. March 2007 I started taking Ortho-tricyclen and quickly gained 10lbs in 2 months. I also had mood swings mostly feeling down. But I was still able to run and exercise more than I had in many years. March 2008 I went in for my annual exam and after mentioning my side effects from Ortho-tricyclen my doctor recommended going back on Yasmin since it had worked before. Two days after starting Yasmin my sinus problems and headaches returned. I was so low on energy and my chest felt tight. The only good thing is that I lost my appetite and in one month I lost 7 of the 10 lbs I gained on Ortho. I stopped taking Yasmin this past weekend in the middle of a pack. I am feeling better and have not had a headache this week. I was also able to run yesterday which felt so good. I hadn’t exercised in a month because of my lack of energy and difficulty breathing. Had I not been on it before I would have thought this was just a bad allergy season. I am convinced Yasmin was the cause of all my sinus problems and headaches.