I’m still sick with some virus causing shortness of breath and painful lungs

I got sick on March 11th with a fever, dry cough, painful lungs, and exhaustion. Then shortness of breath started March 14th. I thought I was recovering and getting more energy on the 21st. My lungs only hurt when I expended energy like walking across the room, no shortness of breath and then by the 23rd my lungs didnt hurt. Then when I slowly walked the dog 7 houses down and then back my lungs