I had all of the symptoms in early January, before this became a pandemic. I am in a high risk category, so I recently asked my doc if I could have the antibody test run to see if I have them and he told me the current test produces up to 48% false negatives, which makes the testing essentially a coin flip.
I travel extensively for my work and comparing notes with others who do the same, airport staff, etc. close to 90% of the people I've spoken to had all of the COVID-19 symptoms in as early as November through late January. Herd immunity has already taken place.
Another important matter can be found on WorldOMeter coronavirus statistics. Click on New York state and you'll see one chart that shows 99% of cases were classified as mild and 1% were listed as serious.
Having had it, I can tell you that you know you've got a bad bug if the symptoms present. There isn't any guessing. Asymptomatic people also develop antibodies.
It's past time to end the panic.