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A cough that doesn’t go away or gets worse.
 
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Coughing up blood or rusty-coloured phlegm.
 
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Feeling out of breath or wheezy.
 
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Chest pain, especially when breathing or coughing.
 
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Ongoing tiredness or unexplained weight loss.
 
If you have any of these symptoms, especially for more than 3 weeks, make an appointment with your GP. Most symptoms are not cancer, but it’s important to get checked.