"Data Sources, References & Notes: ...The numbers are confirmed and probable COVID-19 cases as reported by U.S. states, U.S. territories, New York City, and the District of Columbia from the previous day. ... Case numbers reported on other websites may differ from what is posted on CDC's website because CDC's overall case numbers are validated through a confirmation process with each jurisdiction."
"A probable case or death is defined as:
A person meeting clinical criteria AND epidemiologic evidence with no confirmatory laboratory testing performed for COVID-19;
A person meeting presumptive laboratory evidence AND either clinical criteria OR epidemiologic evidence;
A person meeting vital records criteria with no confirmatory laboratory testing performed for COVID-19."
At least two of the following symptoms: fever (measured or subjective), chills, rigors, myalgia, headache, sore throat, new olfactory and taste disorder(s)
At least one of the following symptoms: cough, shortness of breath, or difficulty breathing
Severe respiratory illness with at least one of the following:
Clinical or radiographic evidence of pneumonia, OR
Acute respiratory distress syndrome (ARDS).
No alternative more likely diagnosis"
(Laboratory Criteria below on the same page)
So to be clear, you have to be diagnosed, and just having symptoms doesn't cut it, you also have to have evidence of, and exclusion of a diagnosis for anything else, so it's not just "having symptoms." There is validation, testing, and a clinical diagnosis that must occur.