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 hope your parents are doing well. It must be hard to be so worried about other people as well as dealing with your own health issues.
And the holidays don't help, because everything is so damned heightened. Please take a day for yourself and check out a bit.