Plueral effusion fatigue upper back pain

Hi iam 27 f.from aug 14 iam not feeling well thought covid and sone hrct chest it showed minimal plueral effusion.from sept iam having shortness of breath fatigue upper middle back pain and chest pain used many medications but no cure.early morning iam feeling too much pain in upper middle back and front chest if iam trying to straight my posture or bend and try to stretch chest iam getting pain whole day feeling feverish symptoms but temp is normal when checked with thermometer.neck pain always body pains at night is it due to any cancer breast or lungs etc?iam worried a lot iam not understanding why it's happening .done cbp crp vit b12 serum uric acid serum creatinine thyroid lft lipid all are normal .esr 28 vit d3 15 taking vit supplements .is this all due to cancer ?bcz hrct chest showed bilateral minimal plueral effusion and infective etiology and these symptoms started slowly slowly symptoms are becoming worse its been 6 months plz help