Ends up I have covid again

Explains why I feel like crap. I figured I just had the regular flu or something as I recovered more or less. My boss was super nice and offered me food and stuff if I needed it since I can’t go into work until Monday. Im shocked that I have it again as I can’t remember the last time I was close to anyone physically. Im going crazy from it though as I feel fine for a while and then feel like crap again.