I've been post covid-19 pretty much since the beginning.
I however came down with a bout flu a few weeks back, and tested positive after the worst of my symptoms abated. I caught it from one of my farm staff or my maid; many in our area also similarly contracted flu, some worse than others; but no hospital admissions that I was aware of.
All in all mine persisted for about 3 weeks; although I still have sinus issues atm; the worst part was the first +/-3 days with fever, chills, sweats, bad headaches, post nasal drip, etc. It hit me about as hard as 2009's H1N1 (i.e. bad flu). The remainder of the 3 week's symptoms were similar to a bad case of hay fever; blocked sinus, but that could have been exacerbated by our Karee trees which were in bloom during the same period. I suffer yearly from hay fever during June to October; generally allergex helps but it didn't for this; had to resort to stronger sinus meds.
Never stopped working except for about 1 week when I chose to stay in bed. A lot of my work can be done remotely so whilst not ideal re no travel, I was able to push through with work with clients; and being at home I was able to catch up on a lot of work I had wanted to get around to. As for a mask I wore it of course when I went to get tested, and then wear it only when I'm out shopping.