I have always thought my resting heart rate being in the 90s-100s was due to being overweight and unhealthy but I’m starting to wonder if it’s my anxiety. I have always had “white coat syndrome” so when I go to the doctor it’s usually elevated. I got a pulse oximeter at the beginning of the pandemic and at first I was using it multiple times a day but have managed to start only using it once every week or two. My heart rate has been in the 100s-110s. I was in the ER recently and it was definitely anxiety related. (Have had ekgs multiple times a year for the last several years and they always are normal) The doctor was worried about my heart rate this time so had me take deep breaths and it came down considerably and he felt comfortable with that. When I have taken it at home and tried the deep breathing, my heart rate came down to the 70s-80s and once I see that low number it jumps right back up. So am I getting a form of white coat syndrome at home when I put the oximeter on?