A person knows when they are sick, this is being human 101. No symptoms, no fever, not sick. Feel ill, then you're sick. See how easy it is?
Are you even human, bro?!
Come on bro, I mean are you serious bro!?! You're joking, right bro? Seriously bro?
The very existence of the word asymptomatic proves your statement to be patently false. But this revelation combined with your inability to parse statistics or understand concepts like comorbidities proves you are in way over your head.