Hi Yvonne, I'm going to ask a question here -
When you get the low O2 sat readings, is it while you are standing or sitting? How is your hand positioned?
The reason I ask is that home Pulse Oximeters are meant to be read while you are seated with your hand resting on the arm of a chair or a tabletop. They are not necessarily accurate on a hand that is not resting, because there may not be a good connection.
I get wildly different O2 readings depending on the finger I use, and it changes as I change position.
Sue