It may be subclinical inflammation in some/most patients. Just because something is inflamed/there is an inflammatory process, doesn’t mean it’ll necessarily be bad enough to get picked up by the standard examinations or tests.
I had long-lasting palpitations after COVID, despite completely normal ambulatory ECG and repeated echocardiograms. Took around 2-3 years to settle down to almost pre-COVID levels today.
thenerdhead|2 years ago