oxygen levels drop to 86 when mom walks to commode without her oxygen on. she breathes in through her nose out through her mouth . it starts going up to over 90 about 92 93. with oxygen on she is in the 90s at rest drops down to 86 when walking then it goes up again after smell the roses blow out the candles pt tells her to do. it goes up after she is sitting. she got out of the hospital 3 mths ago with chf and bronchitis. she is doing pt in the house with pt 2 days week. they are working on her endurance and breathlessness. i can say the shortness of breath has improved quite a bit. anyone have these issues. mom was not diagnosed with copd just mild asthma. please reply. thank you everyone. i hope you are all doing well.