Post covid-19 symptoms. Find solutions.

I am 37 YO, was covid-19 +ve in December-20 with just little cough and cold. No fever, no shortness of breath. I was feeling heathy without any issues. RT-PCR done after 15 days and another one in feb-21 was negative. But there was a little feeling of shortness of breath and after all this time it seems persistent. Oxygen levels are 94-97. With some days i felt dizziness and had a day when bp shoot up and had a sensation of heavy head. Also a strange pain persist in bottom left part of ribcage in back also on left sode of chest. Felt its kind of muscular pain due to working for long hours on computer and would go away. But in this strange time, everything feels suspicious and now i am trying to eliminate suspicious thoughts and find solutions.