What are the symptoms of having a pulmonary embolism?

Pain,short of breath: Pulmonary embolism (or pe)symptoms can be vague, subtle, or extreme depending on the location and size of the clot. Pain and shortness of breath can occur with other lung problems (pneumonia, bronchitis, lung collapse, etc.) pe can be life threatening but is much less common than the other illnesses mentioned. Pe is diagnosed with ct scan, and may also be diagnosed with ventilation/perfusion scan.