What should you know about intermittent shortness of breath?

Breathlessness with wheeze, cough, chest tightness, or triggers such as exercise and allergens can occur with Asthma. A recent cough may accompany Acute Bronchitis. Ongoing sputum production and repeated chest infections can occur with Bronchiectasis, while COPD can cause exertional symptoms and persistent breathing limitation.

Heart-related causes include Angina and Atrial Fibrillation; Anaemia can reduce oxygen delivery and make activity feel harder. Sudden breathlessness with swelling, hives, throat tightness, or faintness may signal Anaphylaxis. These symptoms overlap, so breathlessness cannot identify one diagnosis by itself.

Stop the activity, sit upright, loosen tight clothing, and use a prescribed reliever inhaler exactly as directed. Note the setting, trigger, duration, cough, wheeze, chest discomfort, palpitations, fever, and recovery. Avoid smoke and other known irritants.

Arrange medical review for recurring episodes, breathlessness with ordinary activity, night-time symptoms, or a change from your usual pattern. Bring inhalers and a medicine list. Do not borrow inhalers or delay assessment because an episode improves.

Call emergency services for severe or rapidly worsening breathlessness, inability to speak normally, blue or grey lips, fainting, confusion, crushing or spreading chest pain, or sudden symptoms after a possible allergen. Anaphylaxis can progress quickly and needs emergency treatment.

Seek urgent assessment for new breathlessness at rest, coughing blood, severe wheeze, or breathlessness with palpitations or chest pressure. If episodes are milder but recurrent, arrange a prompt appointment for examination and appropriate tests.

Is the pattern more suggestive of airway, lung, heart, blood, or anxiety-related causes? Do I need lung function testing, an ECG, or blood tests? How should I use my prescribed inhaler? Which changes mean I should call emergency services?