Dianna (Physics Girl) is currently experiencing severe complications from ME/CFS/long COVID. Per the last update on her twitter:
The last weeks were scary. ER visits were hard. Dianna
still can’t walk, or even sit up in bed. But we see signs
of progress. Sleeping more. Eating more. More treatments coming.
Update here - https://www.youtube.com/watch?v=vydgkCCXbTA