It’s a LC symptom I would like to find more research about. High BP was the first symptom that continued from the actual Covid infection about 4 years 9 months ago…morphed to having high HR, and despite having 5 simultaneous hypertensive drugs never went down to the regular 120/70 I did have. Then this last Jan.got diagnosed with ‘postural hypotension’ of 61/40 at tilt table test, so spent the year removing hypertensives: the first to go was the beta blocker, bisoprolol, and one switched from am to pm. Was taken off Indapimide which seems a good idea as the dysautonomia syncope seemed to coincide with taking it, but then 2-3 weeks into removal my BP would go up to 180/80, so back on it by next day it would go back to 128/70 but not stay at that…changes from day to day, am to pm, by 40 systolic units. Ecgs, echocardiogram, chest X-rays etc show no problem. I even started swimming 50 mins 5 x a week 20 months ago, on the principle I might have become deconditioned and cardiovascular system effected… but not obviously improved BP. Also tried the various vitamin/ mineral etc recommendations like ferritin, vits D and Bs…no difference. I’d be interested if your cardio . suggests anything.