OSA and CPAP questions

Hey Rob,  Might as well throw my 2 cent in.  I was told to bring mine to the hospital also. I tried to use it but felt like I was being inflated. I have tried twice more in the 5 weeks since surgery with the same results. I do believe that some air finds it's way down the wrong pipe. I have scheduled a new sleep study since and am waiting. Seem to sleep ok but the proof will be on film.  tony J.