My experience...
Had a very sore throat and a tight chest about ten days ago. It felt more aggressive than the common cold so I tested myself - negative. Tested again a couple of days later and still negative. Thought nothing more of it as the symptoms were consistent with an unpleasant cold.
I started to feel better after about a week but was still coughing and feeling easily tired, so I tested myself again - positve result (twice - I double checked).
So, after dodging it for over two years, I finally have COVID. It's been pretty mild, to be honest - only felt rough for about three days, and even then I didn't have terrible headaches or muscle pains. Now, I just have a cough and get tired much more easily than usual - I want to sleep, a lot.
So, not too debilitating right now, but it is annoying, and it's certainly outstayed its welcome.