This comprehensive guide delves into the symptoms of the flu, highlighting the key signs such as fever, cough, sore throat, muscle aches, and fatigue. It explains the progression of these symptoms, how they can be differentiated from those of other illnesses like the common cold and COVID-19, and emphasizes the importance of early detection. The article also discusses potential complications and severe symptoms that warrant medical attention, while offering practical advice on prevention, management, and when to seek professional help. This essential read aims to equip individuals with the knowledge needed to effectively recognize and handle flu symptoms, promoting better health and well-being during flu season.