Complex apnea after surgery and cpap

I’m looking for anyone with experience getting over complex sleep apnea. i’m in my 30s, relatively fit with a healthy diet. I discovered that I had sleep apnea a few years ago, and after being intolerant to initial CPAP, I got palatal expansion and turbinate reduction so I could breathe out of my nose for the first time in decades.

now that I can breathe out of my nose, I tried it CPAP again and I still get woken up by Central apneas or what I think are Central apneas. I only tried it for about a week, but I woke up so often that I didn’t wanna continue unless I knew it was gonna work.

generally, I sleep through the night and I get a decent amount of deep sleep, but I get very poor REM sleep, and regularly suffer from early awakening insomnia at around the fifth hour of sleep. it is very difficult for me to sleep longer than six hours no matter when I go to bed.

thanks for any advice people can give and let me know if I can make the question better

If you have a PC or Mac and a SD card reader, I would suggest downloading OSCAR so you can look at the data collected by your machine. It works with most ResMed and Dreamstation machines. The general idea with complex apnea is to keep the pressure as low as possible, and avoid using EPR or Flex while you are sleeping. Post if you have questions.