I have one of these https://www.amazon.com/EMAY-SleepO2-Bluetooth-Overnight-Continuous/dp/B0B1ZDMNWS/ref=sr_1_11?crid=D622JZ5JJTI9&keywords=sleep+apnea+device&q

I have one of these https://www.amazon.com/EMAY-SleepO2-Bluetooth-Overnight-Continuous/dp/B0B1ZDMNWS/ref=sr_1_11?crid=D622JZ5JJTI9&keywords=sleep+apnea+device&qid=1677702250&s=industrial&sprefix=sleep+apnea+devic%2Cindustrial%2C242&sr=1-11&ufe=app_do%3Aamzn1.fos.08f69ac3-fd3d-4b88-bca2-8997e41410bb https://www.amazon.com/EMAY-SleepO2-Bluetooth-Overnight-Cont... I have a similar issue where maybe once or twice a night now my sp02 drops below 90, followed by a spike in my heart rate. From the word of my sleep doctor, that is not normal for a younger person. She used this to try to justify the cost of a psg to my insurance company. Find a different doctor. Young and fat is not the qualifying criterea. From this entire thread you can get a sense that there are a lot of people suffering out there that have sleep apnea but not fat. Also, a take home sleep study is cheap and easy and covered by insurance.