What machine and mask do you have? I had a bad CPAP experience 2017ish and navigating sleep apnea treatment with ADHD kinda sucks. I got a recent sleep study done, but the doctor's office seems like a sales farm for a specific CPAP brand/model and they aggressively steered me away from an oral appliance.

I was prescribed modafinil earlier this year and it worked well when I took it but it was intense at the useful dose so the doctor put in for a sleep study. It was a 3 month wait but I am finally getting it done next week an I'm hopeful it leads to a conclusive diagnosis.

I also noticed my issues were worse after my 3rd bout of covid :-/ I had very high sensitivity to alcohol and caffeine after the 2nd bout and have largely cut both out of my life (I never drank more than 20 drinks / year in my life anyway).

Doesn't even need to be a CPAP. I had a sleep study done and it said I basically only had sleep apnea when lying on my back, and my doctor suggested a dental appliance to pull my lower jaw forward.

I got one from my dentist for way too much money, it broke, so instead I got a "snore reducing mouthpiece" from ZQuiet or SnoreRX which is basically the exact same thing but they haven't done a clinical study to show it reduces sleep apnea. I wear one every night along with a nose strip (like Breathe Right, but a different brand that I like better) and my mornings feel like I was hung over are long gone.