Does anyone have small airway disease? I've been sick for over a month now and apparently my pulmonary function test results show SAD. I can't get in to see the pulmonologist until January 9 and the first opening for pulmonary rehab is on December 30!! I don't have many sick days left but I am on FMLA leave until December 18. If I can't breathe and my oxygen drops below 89 at school, how can I work?? I'm so frustrated that it takes so long to figure out what is going on!! When I see the pulmonologist it'll be 2.5 months of this!! Any help would be greatly appreciated! Thank you!!