[ducttape45]

Thanks for the kind words!

I was progressing to that state. My oxygen level was 85-87/88%, but after the treatments it's back to the 95-98% level. I check it every day! My CPAP machine helped me a lot.

[ProtectOurFreedom]

That must have been scary watching O2 drop that far! I'm so glad you caught it.

I started using a recording pulse oximeter a couple years ago to record SpO2 while I sleep. I use a Wellue O2Ring. I started using it to see if my then-new CPAP machine was actually having any benefit. I experienced walking pneumonia a year before that and that was a horrific experience -- on my worst night, my lungs were gurgling on inhale and exhale. Then COVID hit. So the ring has been useful to me for a number of reasons.

I found that the CPAP machine improves my average O2 while sleeping by 2 to 3 points and reduces the drops (oxygen desaturations). It was good to learn that without having to go through another sleep study. I also found that a small elevation change (even just 2,500 fee) reduces my O2 a bit (fortunately, I live at sea level most of the time).

You can buy the O2Ring on Amazon. It's a Chinese product, but very well made and reliable.