I'm sick...

And basically wondering if anyone can give me a reason to go get a covid/flu test. The only one I can come up with is to know then if I need to get the vaccine sooner or later. I'm on kesimpta

There aren't any covid restrictions where I live, and I work from home.

The doctors won't give me paxlovid no matter what.

Any other reasons to go to the pharmacy and buy the test?