What other than asthma can cause trouble breathing?

Many possibilities : Including: pneumonia, chronic lung disease, bronchitis, copd, bronchiolitis, cheat trauma, epiglottis, lung cancer, pulmonary edema, pleurisy, pulmonary embolism, throat trauma, heart attack, neuromuscular disorders, anaphylaxis, high altitude, obesity, organ failure, sepsis, shock, severe ascites, cardiac arrthymias, pericarditis, cardiomyopathy, congestive heart failure, etc.