I have obstructive sleep apnea (OSA) I am using an APAP but what worries me is the dreams?

2 or 4 times a night I dream of dead people, dying, getting killed, that kind of warm and fuzzy thing. Could this be me having an episode and the APA not functioning right?

I have sleep apnea and now I have to sleep with a apap but my nose stays stopped up and I cant sleep.?

I leave it on for about 2 hours when I first get in bed but I cannot what so ever go to sleep I don’t know what to do.Please Help….