What are the symptoms of the flu?

Here are some of the common symptoms of the flu.


The flu almost always causes an upsurge in your body temperature. This is also known as a fever. Most flu-related fevers range from a low-grade fever about 100°F (37.8°C) to as high as 104°F (40°C).

Although upsetting, it’s not rare for young children to have higher fevers than adults. If you doubtful your child has the flu, see your doctor.

You may feel “feverish” when you have a raised temperature. Symptoms contain chills, sweats, or being cold despite your body’s high temperature. Most fevers last for less than one week, frequently around 3 to 4 days.


A dry, tenacious cough is common with the flu. The cough may worsen, becoming uncomfortable and painful. You may also experience shortness of breath or chest discomfort during this time. Many flu-related coughs can last for about two weeks.

Muscle aches

These flu-related muscle pains are most common in your neck, back, arms, and legs. They can often be severe, making it hard to move even when trying to achieve basic tasks.


Your first symptom of the flu may be a severe headache. Occasionally eye symptoms, as well as light and sound sensitivity, go sideways with your headache.


Feeling tired is a not-so-obvious symptom of the flu. Feeling usually unwell can be a sign of many conditions. These feelings of weariness and exhaustion may come on fast and be difficult to overcome.

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