Random speculation aside, if you (like me) are currently at the tail end of COVID-19 and beginning your convalescence from it, it's wise to assume you have some

Random speculation aside, if you (like me) are currently at the tail end of COVID-19 and beginning your convalescence from it, it's wise to assume you have some degree of myocarditis and behave accordingly - that is, as best you can, avoid activities that may strain your heart and circulatory system for a couple weeks to a month following end of active COVID-19 symptoms. I'm not a doctor, and this isn't medical advice, but it isn't alarmism either. It's well known that pneumonias, however caused, tend to be rough on the heart. So it's just common sense to regard this pneumonia the same way. Look at it this way. If you aren't at risk, but assume that you are, the worst that happens is nothing. If you are at risk, and assume that you aren't, you may well not be so lucky. So, especially when you may not be able to rely on the usual degree of hospital support - better safe than sorry.