I suspect I too had Covid myocarditis. Four weeks post 1st infection I developed atrial fib after a month of fatigue, poor exercise tolerance and getting short of breath after bending over. My previously normal heart had severe left atrial enlargement and moderate mitral regurgitation along with other issues. In Oct, three months after atrial fib, my regurgitation was gone and my left atrium had a 15% decrease in volume. My BP was not as wild as yours, but it was pretty bad. I had a 220/110 with my failed stress test but I usually was around 160/80 to 130/74. Stress and poor sleep always increased it to around 170s. Weirdly I took a single 25 mg hydrochlorothiazide and my pressure was less than 110/70 for 5 days. I’m on valsartan 160 mg now, I was on lisinopril 30 mg. My pre breakfast sit for 5 min BP has been ok this past week. . I’ve been bradycardic with resting HRs in the 40s and upper 30s since Covid. My exercise tolerance has been slowly improving. I’ve stalled on getting an ablation, I’m hoping my atrium shrinks some more. I think Covid screwed up my sympathetic and parasympathetic nervous system. I think my heart is still healing. Mentally it has been a drag, to go from being able to exercise for 6 hours to now being wiped out by a 90 minute walk is bad, but I know a lot of people have it worse. Interestingly, 3 months after Covid I got Novavax, I had a big bump in exercise tolerance a week later. My 2nd shingles womped me for a week. I hope your body heals quickly. I’ve found sleep, magnesium, less sweets (wah!) slow long walks and time are helping. My post election despair has been a big problem.