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.
It could be a strain and too maybe if you are being hyper aware about your body (common after a PE) sort of heightens everything but I always think if it’s a new pain and concerning it doesn’t hurt to check in with your doc, for peace of mind.