@kudzu "I did go to Mayo for a pulmonologist consult and was told if there were anything serious wrong with my lungs I wouldn’t be able to get my levels up to 99%."
Did you go to Mayo in Arizona? Did you see an MD or PA or NP?
That comment is medically inaccurate. I have very good oxygen saturation when sitting. but I need oxygen for exertion and sleeping. My diagnosis includes three reasons for my drops in oxygen - all serious and life threatening and all tested and documented in my medical reports.