If it were me, I'd check with the lab/doctor on the number of arousals you had an hour. Regardless of whether they were CA, OA, RERA, URAS or PLMD. The lab should be able to count the arousals for any reason, on the sleep study. Your O2 levels have been fine and you don't need treatment for that part.
If you are arousing a lot. An ASV mode would treat all except PLMD and the CA excludes CPAP mode. I would get a low hour S/H resmed S9 ASV. The algorithm is very similar to the 10/11, if not the same. This would be a low-cost way to see if it helps your daytime feeling. If you aren't arousing, then it won't help and getting use to mask therapy, will disturb your sleep. It will have an overall negative effect on your sleep and daytime feeling.
If you are still using CPAP, I would stop. It is the wrong treatment for CA and can even make them worse. Have you downloaded OSCAR and looked at your past sleep history on CPAP?
You slept 7 1/2 hours in a lab, hooked up to a machine with wires everywhere. I don't see any trouble with your sleeping. Some people don't even get enough sleep to get a result
For the ca you could go talk to the doctor and see if there's any medications that you are on that is suppressing your breathing. Opiates are well known for this.
Google sleep hygiene CBT if you have bedtime issues
If you want to continue with a machine. I would get a secondhand S9 ASV. You should get that very cheap on Facebook or Craigslist. I definitely wouldn't use a CPAP mode machine, it can't help your ca and may in fact make it worse
The only other thing is plm, did they put wires on your leg.
What I meant by initial. When people start in CPAP, it is not unusual to have pressure induced CA. This normally resolves over time. The CPAP could be increasing your CA. You don't have obstructive apnea to treat. 5 all night, <one per hour.
I think this is why your doctor didn't do anything.
awake/arousal 2.3 times per hour... that's ok, you are sleeping through most CA.
av o2 95% ....that's ok.
Av desat 93% ...that's ok.
longest apnea 33.8, seconds, lowest desat 90% ..that's ok too.
No desat under 90%, ..goal is to be 90% and over.
Resmed titration guidelines S. If CPAP doesn't get good O2, next they switch to spontaneous bilevel, then ST and then ASV for CA, to get good O2 "For SpO2 < 90% with all respiratory events eliminated: • Increase IPAP by ≥ 1 cm H20 every ≥15 min until ≥ 90% SpO2 is reached• Follow sleep lab protocols for adding O2 Observe patient and document final settings, including IPAP/EPAP pressures and TiControl settings if altered from default"
You are always 90% and over, average O2 95% , average minimum 93% and wake/arouse 2.3 times an hour. For you I would ask your doctor, I think that treatment is optional, or un-needed.