Does it show a consistent trace curve? Sounds like something really isn't right with what you are describing.
Not sure what you mean. There are small blood oxygen meters that you put your finger into and they give a reading. Some of these can log those readings over hours and show a graph, and also the min/max.
Would you please answer my other questions?
I don't know what a constant trace curve is. My overall point was that OP can get an inexpensive meter and check his blood oxygen while sleeping rather than trusting a doctor.
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