after 6 months of using Advair Diskus, it felt like a piece of cheese cloth was at the upper part of my lungs. My breathing was very difficult, My Dr. didn't think it was Advair. After one year I also developed dry eye, muscle spasms in legs, cramps in my feet. I didn't know about side effect of dry eye. I have not used Advair for over a year now, but except for the feeling of cheese cloth over top of lungs, all other systems are worse. Dry eye is causing me not to be able to read but for a few minutes, driving at night is impossible if its raining. My computer letter setting is set at a very high font so I can read easier.