Yasmin and asthma attack

I was put on Yaz (same as Yasmin but with a smaller estrogen dose) due to irregular periods and a presumed hormonal imbalance. That was in September '07. Four month later, on Jan 1, '08, I went to the ER with breathing difficulties, and weakness in my arms and legs. I had been having muscle cramps/ charley horses in my right calf, but that was the only other health problem I had experienced. I thought I was having an asthma attack. So did the ER - at first. After I did not respond to the breathing treatments, and I became completely out of breath and exhausted after walking across the hall to the restroom, the ER doc checked my D-Dimer level to see if I was at risk for blood clots. He said if it came back over 500, he would have to do further testing for clots. It came back 4500!! I was sent immediately down for a CT Scan which showed mulitple clots in both lungs, mostly small, but several of significant size. I was immediately put on oxygen and a heart monitor, and an IV drip of heparin was started. I was in the hospital for 4 days, had to learn to give myself shots of Lovenol in my stomach until my pill form of blood thinner had time to kick in. I am now taking Coumadin blood thinner every day until July, when my D-Dimer will be checked again. Depending on the results, I may come off the Coumadin, or I may have to commit to it for 3 years. However, I was tested for all the hereditary blood clotting disorders and all came back negative, so my doctor feels as though the cause has to be the YAZ! Everyone tells me I was very lucky and that I could have easily died, especially when I was just thinking I was having an asthma attack and put off going to the ER for a few days. If you are taking Yaz or Yasmin, and you begin to have difficulty breathing, any kind of leg cramps, weakness, or tightness in your chest (I had also been having severe heart burn) - go have yourself checked out!!!!!