Things are being put into your body with or without your knowledge. You had no idea if you were infectious with COVID for up to 14 days possibly, so it doesn’t matter if you didn’t go out when you “felt sick.” You may feel like your being responsible, but that does not mean you feeling that way actually means you are being that way.
Over 500,000 people have died. Awesome. You recovered. A lot of other people didn’t. I wouldn’t be so confident you’ll always recover. And it’s possible that you’ll infect folks who can’t recover along the way, because of your “lack of interest.”