A chest infection is an infection of the lungs or airways that can be caused by viruses or bacteria. Symptoms of a chest infection can include:

• A persistent cough that may produce green or yellow mucus, or even blood
• Wheezing and shortness of breath
• Chest pain or discomfort
• A high temperature
• A headache
• Aching muscles
• Tiredness
• Loss of appetite
• Joint and muscle pain

In some cases, a chest infection can also cause more general symptoms of an infection, such as sweating, fatigue, or joint and muscle pain. It is important to note that symptoms may vary depending on the type of chest infection and the individuals age and overall health. If you think you have a chest infection, it is recommended to see a doctor, especially if you have a high temperature, cough with bloody mucus, shortness of breath, or symptoms that last more than three weeks.