Regarding CRP. To take care of food?

Hello Doc, I was tested Covid positive on 7th April 2021. It has been more than 14 days. I was under medications attached the prescription which are now completed. I got blood test done for CBC, CRP, LDH, Creatinine and D-Dimer after 7 days of medications on 15 th April 2021 all my reports were normal except CRP which was 21 mg/L. I got my blood reports done again on 23rd April 2021 with CBC and CRP. My CRP report still shows 10.5 mg/L which is reduced than before but still not in range.Does this mean I still have covid even after 20 days of testing postive? Can you kindly advice on how can I get that back to normal. Do I need to take care of food? Since my medicine dosages are completed already. I am feeling more weakness sometimes now than I have when I was under medications before. Kindly advice on the same if it is normal or any actions required from my end. Regards