Symptoms of Flu

Influenza symptoms usually start abruptly. They may include:

• Fever and chills
• Severe muscle aches
• Severe fatigue
• Headache
• Decreased appetite, other gastrointestinal symptoms like nausea and vomiting
• Runny nose, nasal congestion
• Sneezing
• Watery eyes, conjunctivitis
• Sore throat
• Cough
• Swollen lymph nodes in the neck