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How can I tell if I have the flu or just a common cold?

When you’re feeling under the weather, it can be difficult to determine whether you have the flu or just a common cold. Both illnesses share similar symptoms, but there are a few key differences that can help you differentiate between the two.

1. Onset and Severity of Symptoms

The flu typically hits you suddenly and severely. You may wake up feeling fine, but within a few hours, you’ll experience a rapid onset of symptoms such as high fever, body aches, fatigue, and chills. On the other hand, a common cold usually develops gradually, with milder symptoms like a runny or stuffy nose, sneezing, and a sore throat.

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2. Fever

Fever is more common and tends to be higher with the flu. A temperature above 100.4°F (38°C) is often an indication of influenza. In contrast, a common cold may cause a mild fever or no fever at all.

3. Body Aches

Body aches are a hallmark symptom of the flu. They can be severe and affect your entire body, making even simple movements painful. With a common cold, you may experience mild body aches, but they are usually less intense and localized.

4. Fatigue

Extreme fatigue is another common flu symptom. It can leave you feeling exhausted and unable to carry out your daily activities. While fatigue can also occur with a cold, it is typically less severe and doesn’t last as long.

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5. Respiratory Symptoms

A common cold primarily affects your upper respiratory system, causing nasal congestion, sneezing, and a runny nose. In contrast, the flu can involve both the upper and lower respiratory system, leading to symptoms such as a dry cough, chest discomfort, and shortness of breath.

6. Duration

The flu usually lasts for about a week, with symptoms gradually improving after a few days. A common cold, on the other hand, typically resolves within a week or so, with symptoms improving steadily throughout.

If you’re unsure whether you have the flu or a common cold, it’s always best to consult a healthcare professional for an accurate diagnosis. They can provide appropriate treatment recommendations and help you manage your symptoms effectively.

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