Flu Symptoms: Sudden Onset, High Fever, Body Aches, and Management

Your symptoms (headache, fever, body aches, chills, runny nose, sore throat, lightheadedness, cough) suggest influenza. Flu hits suddenly. Common signs: fever/chills, myalgia, headache, sore throat, rhinorrhea, cough, fatigue, anorexia, sometimes nausea/vomiting/diarrhea.

Action: See a doctor ASAP. Antivirals (oseltamivir, baloxavir) work best within 48 hours. Rest, hydrate, OTC fever/pain relievers (no aspirin in children <19), humidifier, saltwater gargle, isolate to prevent spread. Seek emergency care for difficulty breathing or worsening symptoms.