Post Covid. Chest. any views on this.

I was tested covid positive on 23rd April and post that i was in home isolation and medication as per the doctor. He gave me Azithromycin 500 along with zinc and vitamins. I had no symptoms for almost 10 days, so i came out of isolation on 9th may. I was facing no issues, but 2 days back i started feeling some pumping in my chest and slight pain for around 2-3 seconds. I was also feeling weak. I was unable to sleep because of pumping lungs. Body temperture, Spo2 and Pulse are normal. Then i consulted a doctor and he gave me medicine and blood thiner. When i told them these symptoms he said it is normal and it is because the lunga are recovering. Now i feel better but i feel a sensation like feeling in my centre chest. Any views on this.