A blood clot in the lungs can cause the oxygen supply to the lungs to be limited or blocked. The heart has to compensate this, which makes it beat faster.
2. Chest pain
Many people who suffer from pulmonary embolism think they are having a heart attack, because the pain is similar. The only difference is that the pain in a pulmonary embolism feels like you are being stung and it gets worse during deep breathing.
3. Unexplained cough
Often, a cough is being associated with a cold or a sore throat. But if you suffer from a dry, unexplained and out of nowhere emerging cough, your body may warn you for pulmonary embolism. Are you coughing up phlegm and/or blood? Call the doctor right away!