It'd be nice to find out if there's any overlap with the "brain fog" from fibromyalgia. My college years would have been far less torturous if I could have lived without that, even if I still had to deal with the pain.
There's an assumption going around that idiopathic-ish conditions like fibromyalgia may be caused (or a subset of those with that diagnosis) by long-tail after effects of various infections, COVID-19 being one of many.