HIGH CRP AND ESR LEVEL. Due to that?

My CRP 55 and ESR 50 level (from march) is not coming down from last six months. Due to this i am haveing very much pain in my knees and joints .for the same docter prescribed me LInizolid 600 mg for 1.5 monts and went for re test at that time its went down little bit aorund 20 . And now i gone through for the test again last week and its still came CRP 28 mg/l ESR 28 mm/ 1st hr. Kindly let me know what should i do ...is it the sign of cancer? Past history:- I had c section delivery in sep 2019. At that time i had placed cervical cerclage mcdonald stitch. And stitches breek and go into the wmob at the time of dilevery . As per my doctor she has removed all .is it the infaction due to this? Also my himoglobin was low at that time so she applied saline . My blod might be got infected due to that?