what are signs and symptoms of pulmonary edema?
['Extreme shortness of breath or difficulty breathing (dyspnea) that worsens with activity or when lying down.', 'A feeling of suffocating or drowning that worsens when lying down.', 'Wheezing or gasping for breath.', 'Cold, clammy skin.', 'Anxiety, restlessness or a sense of apprehension.']