Checking for symptoms of Covid-19, coughing heavily but without sputum dangerous or not

Covid-19 situation update In Thailand today 11 Apr. 65 new patient 22,387 cases get well today 27,680 cases died 105 cases by COVID-19 Omicron species or Omikron can spread quickly But most patients show no symptoms. or showing few symptoms Flu-like symptoms such as headache, fever, cough, sore throat, runny nose, some may also have diarrhea.