Less common symptoms could include:
- Coughing up blood (haemoptysis)
- Headaches
- Fatigue
- Feeling sick or being sick
- Wheezing
- Joint and muscle pain
- Feeling confused and disorientated.
While the symptoms of pneumonia can be reported using the 111 online service, there are times when it is a medical emergency.
Call 999 for an ambulance if you or somebody you know:
- Are struggling to breathe
- Are coughing up blood
- Have blue lips or a blue face
- Feel cold and sweaty, with pale or blotchy skin
- Have a rash that does not fade when you roll a glass over it
- Collapse or faint
- Become confused or very drowsy
- Have stopped peeing or are peeing much less than usual.
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The elderly are more at risk of serious complications of pneumonia, the NHS asserts.
Possible complications include pleurisy, where the lining between the lungs and ribcage becomes inflamed, which can lead to respiratory failure.
Another risk is a lung abscess, which is more common in people who have a history of severe school misuse.
Sepsis, otherwise known as blood poising, is also a plausible complication of pneumonia.