Symptoms include fatigue, severe dyspnea at rest, and cough that is initially dry but may progress to produce pink, frothy sputum.

The overwhelming symptom of pulmonary edema is difficulty breathing, but may also include coughing up blood (classically seen as pink, frothy sputum), excessive sweating, anxiety, and pale skin.

Severe symptoms include breathlessness, a dry, irritative cough (which may progress to the production of pink, frothy sputum), severe headache, lack of coordination and balance, confusion, irrational behaviour, vomiting, drowsiness and unconsciousness.