I am new to the site. My concern is the same as Jon's. Since I began using my cpap my ability to walk, or do most things involving any level of exertion, just cleaning the house, even talking is becoming more difficult. I am short of breath most days and VERY concerned as I feel it has been a gradual decline. I keep a slight headache daily, which is also an improvement b/c I had severe migraines on a weekly basis before the cpap use. I can take deep breathes, however I breathe shallow most of the time, is this a condition of the long term cpap use?? Dx with restless leg syndrome- at 2mg requip and still kicking uncontrollably in deep sleep, which initially caused the sleep study. Dx in 2013 with sleep apnea using cpap at 14. I feel a lot better, average 6 hrs-on and off sleep, which is great considering some nights I didn't sleep at all.