I'm unfortunate in that the width of my esophagus is very narrow for the size of my neck....my doctor literally told me the one time "you have sleep apnea, I want you to go get a sleep study" when he was looking down my throat for a routine visit.
And he then asked me if I snores or felt tired a lot even after sleeping. And I said I dunno about snoring but yeah, I am tired a lot even after sleeping...
Got tested and I was in the "severe" category with something like 35x an hour I was stopping breathing and waking up. They said they have people who are like a hundred so it's not the worst they ever saw but it was still considered very bad.
However I had an additional issue because once the CPAP pressure got too high I started having Central Apnea, which is basically your brain telling your body not to breathe...so then I had to use a BiPap and now I only have 1.5-2.5 episodes per hour on an automatic pressure setting.
Have an app that I can monitor everything on and it collects all the data every night.
Won't sleep without it, ever, I feel so much better using it.
Sucks because even tho I am in great shape I still will always have to use it due to physical issues of having an esophagus that is too narrow, which means it's not weight related like most people...