LONG covid? COVID Pneumonia?

At our maintenance Christmas party last night one of the guys I worked with a lot came up to talk to me. I didn’t recognize him till he sat down. We used to golf on the mill league together and talk about fishing daily. He looked like crap and started going down the list of health things he’s going through. He’s also on oxygen now. He’s far left so we avoided that subject but vaccinations came up and I said I didn’t get any. Ohhhh you are one of those guys are you. And I said yes I am. Well I’ve gotten five so far. I thought well that explains a lot.