Is it COVID-19 or allergies? Common COVID-19 symptoms: Fever. Shortness of breath. Dry cough. Tiredness. Muscle or body aches. Headache. New loss of taste or smell. Sore throat. Runny or stuffy nose. Nausea or vomiting. Diarrhea. Common seasonal allergies symptoms: Runny or stuffy nose. Sinus pressure. Sneezing. Itchy eyes. Postnasal drip. Ask yourself: Are your seasonal allergy symptoms normal for you? If not, call your doctor.