I was recently diagnosed with sleep apnea and given my first CPAP machine with full face mask. I notice that when I use it for longer than 45 minutes I get asthma sxs, mostly chest tightness and wheezing. I asked my PCP about this and he suggested using my albuterol inhaler before I use my CPAP. I tried this yesterday and the wheezing was slightly better but not gone completely. Anyone else have/had this problem? Any suggestions? Thanks!!