Excessive fear with negative thoughts.

Sir, I ve been suffering throat, chest burn and tonsils since 3 months. Initially I did'nt go to doctor as I thought it was covid. After 60 days I went to doctor and he told me that it was not covid. Bt still i feel I might have been affected somewhere. The same thing is eating my brain always. Yesterday when saw my mobile I was asked for update the Arogya Setu app. Soon after I touch the update,  my condition in the app suddenly started to show yellow colour and saying that iam moderately in risk of covid. When I touch that yellow colour the app started to scan the users whom I contacted recently and saying that I contacted 6 people on 02 Jul , including 1 covid + ve, 1 moderately risk and 4 are healthy. I was so..badly feared and spoke to call centre and they said if I dont have symptoms then not to worry and wait for 4  days more. My mind is fully filled with - ve thoughts for covid,that I may be...... if I got covid. I have two kids. My only issue is fear of.......iam a Musician.