I have been having shortness of breath for quite a while now. I have no other symptoms whatsoever, other than shortness of breath. I have been hospitalized for fear of a PE or mitrial valve prolaspe. All tests came back fine and it wasn't the PE or prolapse. The heart ultrasound was fine and I was told that they sliced the image thru to my kidneys, my lungs, my spleen and gallbladder and nothing showed up abnormal. I have no pain, no fever, nothing but SOB. I have no past history of asthma or any breathing problems.