Pulmonary Embolism Support Group
By far the most common form of pulmonary embolism is a thromboembolism, which occurs when a blood clot, generally a venous thrombus, becomes dislodged from its site of formation and embolizes to the arterial blood supply of one of the lungs. Symptoms may include difficulty breathing, pain during breathing, and more rarely circulatory instability and death.
I ran across a mention of the trouble that you said occurred when laying on your left side. A fellow had severe sleep apnea with oxygen levels dropping to as low as 85 for up to 23 seconds - which caused his heart to beat like crazy trying to maintain oxygen levels. But he was alerted by the rapid beating of his heart.
Another fellow had a hiatal hernia that bothered him when he lay on his left side. Took him awhile to isolate the trouble, however, because he drank about 3 glasses of wine every night before retiring in order to sleep. He was told by his doctor that too much alcohol before bedtime could cause similiar symptons.
Hope that you can find the answer.
I'm trying not to be a hypochondriac. I tend to be hyper-sensitive since the first set of PE's. I'm just trying to rule out what I can before I go traipsing off to the ER.
Do you know if you have fluid around your lungs (i.e.., Pleurisy)? Its a pretty common symptom of PE patients. It can be very painful and would explain the symptoms you described. I could not lye on my side or stomach for over a month after my PEs due to this. Not much they can do for it. Good news is that it is pretty harmless and gradually goes away over time. It can be detected with a normal chest xray.
Robert