Wow, I'm so sorry about your friend. That is just awful, I hope he gets better soon
This Virus is terrible. So many weird things it causes, I've also watched COVID stories on YT which, I do not recommend.
And people are like "Yeah, I thought I was gonna die!" some had like schizoprenic symptoms, ontop of not breathing. Some passed out and lost coinscoiusness, One guy said his skin felt like he had a sunburn, another lady had a fever for 9 or 10 days straight. Such a weird disease it is. Just have to ride it out inside your house and hope you survive
Hopefully a cure can be found soon, but I imagine most of us will get this Virus. They just don't want it to crush your healthcare system in whatever country you are in, so having everybody mitigate it by staying home is all they can do, but more than likely we will all get it unless they can eradicate it like Smallpox