What does shortness of breath feel like with pulmonary embolism?

You may feel unable to get a satisfying breath even while resting. Breathing can be uncomfortable, especially if there is chest pain that worsens with a deep breath or cough.

A pulmonary embolism is a blockage in a blood vessel in the lung, commonly caused by a blood clot. The blockage can interfere with blood flow through the lungs, which may trigger a feeling of breathlessness, a fast heartbeat, or light-headedness.

Shortness of Breath is a very common presentation of Pulmonary Embolism. The same symptom also occurs with many other conditions, so it cannot confirm the diagnosis without urgent clinical assessment.

Seek urgent medical assessment for sudden or unexplained shortness of breath, particularly when it comes with chest pain, coughing up blood, fainting, or one-sided leg pain or swelling. Do not drive yourself if you feel faint or severely unwell.

Tell the clinical team when symptoms started and whether you have recently been less mobile, travelled for a prolonged period, had surgery, been pregnant or recently given birth, or had a prior clot. These details can guide the assessment.

Call emergency services now for severe or rapidly worsening breathlessness, chest pain, collapse, fainting, confusion, blue or grey lips, or coughing up blood. Do not wait to see whether these symptoms settle.

Even milder new breathlessness needs prompt assessment when it is unexplained or paired with leg swelling or pain. The urgency is based on the symptom pattern, not on guessing the cause at home.

Ask what tests are needed to check for a clot in the lung, whether you need immediate treatment while tests are arranged, and which symptoms mean you should call for emergency help after you leave.