I got rapid antigen and PCR tests the day after symptoms. The rapid test came back negative but two days later I received the result of the PCR: positive. So yes it was COVID-19 unless the PCR was a false positive but more likely the rapid antigen test result was a false negative. I attribute the lightness of my symptoms to the fact that I am fully vaccinated. I did not receive the booster until 2 weeks after I completed quarantine.