Your Covid 19 test came back negative, but the tests still produce 50% false negatives so it's a coin toss. You have no symptoms, haven't been exposed to anyone who had the virus. To be sure you don't infect anyone you need to wear a mask and a face shield, and gloves, stay 6 feet away from others, try to talk to other masked people behind plexi-glass shields. Wash your hands frequently, self quarantine for up to 20 years and oh yes, from now on we'll see each other with tele-medicine. So, doctor, are you really just guessing? Based on all the data , guidelines and information we've gotten from the CDC, yes. And if I have a heart attack? Just call me on Skype and the receptionist will walk you through the defibrillator.