As of September 2023, COVID-19 symptoms can range from mild to severe and may change with new variants of the virus. The most common symptoms are fever, chills, cough, shortness of breath or difficulty breathing, fatigue, and muscle or body aches. Other symptoms may include headache, loss of sense of taste or smell, sore throat, stuffy or runny nose, nausea and vomiting, and diarrhea. According to one source, the EG.5 variant, also known as Eris, may cause new loss of taste or smell. It is important to note that some symptoms of COVID-19 are similar to those of the common cold and the flu, so it can be hard to know for sure if you have the SARS-CoV-2 virus. The only way to know if you have COVID-19 is to be tested, and if you want to be tested, you should contact your healthcare provider or use a home diagnostic test.