My husband has been just utterly physical exhausted and weak since last Sunday. Went to the doctor thinking Covid was a possibility, but because he only really has that one symptom, he doesn't meet the criteria for testing. Doctor said it is probably some other awful crud that is going around that is wiping him out. He tends to get more intense symptoms no matter how small the illness because of his other health conditions, so it is so hard to know. He's starting to feel maybe a bit more human, but whatever it is, it has kicked his butt.