My oxygen levels tend to go down when weather is damp
Just a suggestion r u doing any regular exercise other than to the kitchen and back? Obviously you would have to watch your 02 levels, but without exercise we do decondition and deteriorate more quickly. I think sleeping 14 hours may be a reason for the body not requiring much oxygen (in addition sleeping excessively could be a sign of other health issues, diabestes for one, when blood glucose levels rise too high). Just my views - but probably a discussion with a medical professional may help determine what is happening and the doctor can check things over, blood test etc.
Hope whatever is happening can be rectified for you soon.
Content on HealthUnlocked does not replace the relationship between you and doctors or other healthcare professionals nor the advice you receive from them.
Never delay seeking advice or dialling emergency services because of something that you have read on HealthUnlocked.