@gee12 @saravb and anyone else using a Pulse Oximeter.

Did you know that oxygen saturations normally varies by several percentage points? I can lower mine to the 80's by slouching in my chair and taking shallow breaths, then increase it to over 95 by sitting up and belly-breathing for several breaths. It is also normal for it to fall during heavy exertion and rise again as you "catch your breath" - a recovery which can take from a few seconds to a few minutes depending on your lung condition and fitness level. And during sleep it may fall - I can help that by taking deep slow breaths and stretching before I get out of bed.

Some things to know about home use pulse oximeters and measuring minute-to-minute oxygen saturation:
Home meters are designed to be used while sitting/standing still and can take up to 30 seconds to register an accurate reading; they are not meant to be used while moving.

For an accurate reading during exercise you need to use one that fits snugly to the fingertip - no gaps, no moving - like the ones taped on your finger during a treadmill stress test in the lab or clinic. Those more expensive machines are also designed to give more instantaneous readings.

The best advice from a pulmonologist was to check it in the morning after meds and airway clearance, then put it away unless you feel faint or fingertips/lips are tingling or changing color. (I used to know it was time to check my Mom's O2 sats when her lips became pale.)

Also, repeatedly focusing on one tiny aspect of self-care leaves less time and energy for the rest of it - airway clearance, getting some exercise, fixing healthy food. I can also increase anxiety about your condition...

Have you tried going through the day "listening" to your body and pausing to breathe deeply when you feel short of breath instead of reaching for the meter?
Sue