My friend suggested that I obtain a pulse oximeter. She got one after getting sick several months ago and she now knows that sometimes her oxygen levels get low, but standing up and walking around returns her oxygen levels to normal ranges. (The first time she observed this, she was under the supervision of a medical professional.) Since we have some similar long-term symptoms, she suggested I also monitor my oxygen levels at rest and moving. She used the data to change her behavior (instead of staying very still, she now takes short walks 5 times a day) and she feels better. So the working theory is if there was data showing my body has more oxygen when I move for short periods of time, it would help me change my behavior and feel better, too.
I did one fast internet search and read one article: Should You Really Have a Pulse Oximeter at Home? > Stories at Yale Medicine … I sum up this article as saying “no, we think most people don’t really need a pulse oximeter, but also anxiety is a thing.” I’m not getting it to see if I have COVID-19, though. I’d be getting it to manage symptoms of something else that’s chronic. I also don’t use my sleep apnea machine, and I know Anyway, I haven’t decided.
I just think it’s funny because I love meters so much that we have a Tunameter 'round these parts.