COVID positive and my stress level went up

I switched from an AW SE first generation one month ago to a Garmin Vivoactive 5. Since then I’ve been trying to understand features and measures. Since I got it my average stress level is 30, I have a desk job and work from home. I woke up feeling terrible this morning, and I had some Covid tests at home and decided to get one done, and it was positive. I am feeling terrible, headache, runny nose, my body aches. I’ve been in bed the whole day, and my stress level keeps up, I am just amazed, seeing how bad I am feeling, that even being in bed doing nothing, my stress level is the highest I’ve had since having my Garmin.