I wouldn't have a clue as I have never had it?
I have always thought though when this Covid thing first hit I went through a period of time where I felt like shit, the shivers, sweating, coughing and it felt like the fucking flu of old but I knew it could not be the flu as I have a flu jab every year, thus I may have had it then before it hit the headlines.
I thought it must have been a bug of some kind so I just pumped myself up with Paracetamol, went to bed with double jumpers on to sweat it out, laid off the booze, and after around 3 days I managed to get back to normal and the land of the living.
I know they are going on about having another Covid jab for free but if they want to do that as a yearly jab like a flu jab then I will be ok with that, the wife, though said she has had 3 and she won't have anymore because the last jab she had made her ill for around 3 days,