I felt like crap after exposure, felt ok after 10 days now I’m back to feeling like crap since…

I felt like crap after exposure, felt ok after 10 days now I’m back to feeling like crap since Monday. My nose is back to being stuffed up, sinus headache, intense body aches especially my lower back, feels like back labor and my nausea is back 😭😭. I can’t find a good position to lay down without feeling lower back pains or like I have to puke.