Flu can give you any of these symptoms:
- sudden fever - a temperature of 38°C (100.4°F) or above
- dry, chesty cough
- headache
- tiredness
- chills
- aching muscles
- limb or joint pain
- diarrhoea or upset stomach
- sore throat
- runny or blocked nose
- sneezing
- loss of appetite
- difficulty sleeping
Your symptoms will usually peak after two to three days and you should begin to feel much better within five to eight days. However, you may have a lingering cough and still feel very tired for a further two to three weeks.
When to visit your GP
If you are otherwise fit and healthy, there is usually no need to visit your GP if you have flu-like symptoms.
The best remedy is to rest at home, keep warm and drink plenty of water to avoid dehydration.
You should visit your GP if you have flu-like symptoms and you:
- are 65 years of age or over
- are pregnant
- have a long-term medical condition, such as diabetes, heart disease, lung disease, kidney or neurological disease
- have a weakened immune system (the body's natural defence against infection and illness)
Flu can be more serious for these groups and antiviral medication may need to be prescribed.