Hello sir, I want ask u my some quarries , pls help I was tested positveof covid19 by RTPCR on 8th April and 25th april ( and antigen negative on 6th may) I was in home isolation from 10 april to 3rd may and was asymptomatic ...only took medicine of vitamin, zinc ,calcium, for 15 days amd ivermectin for 3 days as suggested by doctor... (I was not monitoring my spo2 as i was not having oximeter) Now from last few days I'm monitoring it it was varying largely from 92 to 98 during various time of day...and tingling was observed yesterday From Yesterday spo2 is avg 97-98 I am now worried is there anything to worry... (And may be due to this repeated checking and feelig restless...also done 6 minut walk test but same...during sleep time spo2 drops amd rise) Is this possible that infection is there in lung after almost 20days and affectig in after 20 days Pls suggest what to do