Health care insurance confusion

I’m confused. I got the flu a few months ago, the worst flu I’d ever had. It wasn’t COVID — I have never tested positive for COVID — but it was a humdinger. For more than a week, I was a lump on a bed, completely unable to move or do anything. To make sure I wasn’t going to perish, I paid a visit to the hospital emergency room. They tested me for all kinds of things and, five hours later, said …