@SusanEllen66
Do you have any family or friends who can go to appointments with you to help you advocate for better care?

Did your doctors do any testing/imaging (X-ray/MRI of lungs) to get to the root of your low oxygen levels? Did they do bloodwork to check for anything abnormal? Have they tested you for sleep apnea with a sleep study? Did they offer you supplemental oxygen or CPAP if you have sleep apnea?

Did you have Covid or the mRNA injection? Is your oxygen level lower than usual for you and how long has this been lower than normal for you?

You need to get copies of all of your medical records and review in detail to see if any testing/lab work shows any abnormalities.