Do I need further scan now? 4 months?

Hi Doctor, I was covid positive in FEB 2021 and my CT score was 13. I was recovered on 14th March, covid negative. I was NEVER on oxygen support . I repeated my CT scan after two month in April End. It showed improvement and ct score was around 6-7. It has been all most 4 months now. I can do morning walk for an hour without much breathing loss and Spo02 comes around 97-98 after this walk. I can climb 4 floors striers with  mild breathless which goes off if I sit for 2 min. Spo02 comes apron 98-99 after climbing 4 floor. Normal seating position Spo2 comes around 98 ( hold oximeter for 5 min) Only issue: Sometime in a day feel congestion near throat and nose as feel like breathing tight. But this is happening since many months. I have question. Do I still need any further CT csan in future? Could be something serious as Lungs fibrosis after 4 months? Please read question properly before answer.