Differential diagnosis of dyspnea are :
-panic attack
-acute respiratory distress syndrome
-metabolic acidosis
-pulmonary embolism
-pneumothorax
-pulmonary edema
-pneumonia
-asthma
-aspiration
-chronic obstructive pulmonary disease
-upper airway obstruction
-restrictive lung disease
-pleural thickening
-pleural effusion
-obesity
-respiratory muscle weakness
-myocardial ischemia
-cardiac tamponade
-valvular obstruction arrhythmia
-congestive heart failure
-sepsis
-hypercapnia
-acidosis
-methemoglobinemia
-anemia
-anxiety
-panic attack
-acute respiratory distress syndrome
-metabolic acidosis
-pulmonary embolism
-pneumothorax
-pulmonary edema
-pneumonia
-asthma
-aspiration
-chronic obstructive pulmonary disease
-upper airway obstruction
-restrictive lung disease
-pleural thickening
-pleural effusion
-obesity
-respiratory muscle weakness
-myocardial ischemia
-cardiac tamponade
-valvular obstruction arrhythmia
-congestive heart failure
-sepsis
-hypercapnia
-acidosis
-methemoglobinemia
-anemia
-anxiety