Disease: Pulmonary Edema
Symptoms: Pulmonary edema symptoms may appear suddenly or develop over time. Symptoms depend on the type of pulmonary edema. Sudden (acute) pulmonary edema symptoms  Difficulty breathing (dyspnea) or extreme shortness of breath that worsens with activity or when lying down A feeling of suffocating or drowning that worsens when lying down A cough that produces frothy sputum that may have blood in it A rapid, irregular heartbeat (palpitations) Anxiety, restlessness or a feeling that something bad is about to happen Cold, clammy skin Wheezing or gasping for breath   Long-term (chronic) pulmonary edema signs and symptoms  Awakening at night with a cough or breathless feeling that may be relieved by sitting up Difficulty breathing with activity or when lying flat Fatigue More shortness of breath than usual when you're physically active New or worsening cough Rapid weight gain Swelling in the legs and feet Wheezing  High-altitude pulmonary edema (HAPE) signs and symptoms HAPE can occur in adults and children who travel to or exercise at high altitudes. Symptoms are similar to those that occur with acute pulmonary edema and can include: HAPE  Headache, which may be the first symptom Shortness of breath with activity, which becomes shortness of breath at rest Not being able to exercise as much as you once could Dry cough, at first Later, a cough that produces frothy sputum that may look pink or have blood in it A very fast heartbeat (tachycardia) Weakness Chest pain Low fever  Symptoms of high-altitude pulmonary edema (HAPE) tend to get worse at night.