Should I stop measuring sp02? Sp02?

Hi doctor, I was diagnosed with covid on 25th Feb. My ct scan showed total 30-40% lungs involvement. I was admitted in hospital for 5 days and discharged after all vital normal for those 6 days. I did x ray after 28 days of treatment and it came complete Normal. My spo2 was around 95-98 for all those 28 days. But I have developed fear of measuring spO2 20 times a day due to fear fibrosis ( read on internet).my doctor told me that everything is fine after x ray.  My 6 min walk is also fall around 97-98. Should I now stop measuring sp02 ?? If not, then how long should o keep measure. I have not got fever also. I am scared. Please read questions fully before answer ... U answer is very imp.