H1N1 Flu Symptoms: Signs, Symptoms & When to See a Doctor

The signs and symptoms of H1N1 influenza (swine flu) are similar to those of seasonal flu and may include:

Common:

- Fever

- Cough

- Sore throat

- Runny or stuffy nose

- Muscle or body aches

- Headaches

- Fatigue

Less common:

- Vomiting

- Diarrhea

Serious:

- Difficulty breathing or shortness of breath

- Chest pain or pressure

- Confusion

- Seizures

- Severe weakness

- Bluish skin color

If you experience any of these symptoms, it is important to see a doctor right away, especially if you are in a high-risk group for complications from the flu.