Well except that there's strong evidence that covid directly attacks parts of the body like the respiratory and cardiovascular systems that people develop (in s

Well except that there's strong evidence that covid directly attacks parts of the body like the respiratory and cardiovascular systems that people develop (in some cases long term) problems with. The fatigue stuff is a bit fuzzier as nobody really knows the underlying cause of that, but it's known to be triggered by other viruses, so it's entirely plausible (and likely given the sheer number of reports) that it's triggered by this one.