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Unusual increase/decrease in sputum, a change in colour or consistency or presence of blood
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Chest pain, tightness or fullness
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Increase in the severity of your breathlessness
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Increase inhaler use for more than a few days
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Palpitations, increase in heart rate
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Increase in fatigue and lack of energy
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Decrease in exercise tolerance for a few days
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Increase/decrease in weight
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Waking at night because of shortness of breath
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Fever, headaches, dizziness, confusion