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 did some swimming (not a lot and not regularly) and I didn't really notice that the chlorine bothered me.
I think it's a great way to exercise.
Now I've started back at water aerobics at our local YMCA. Indoor and plenty of chlorine. I do not submerge my head in these classes but the chlorine smell is definitely noticeable. One time it burned my eyes, it was so strong but usually it just burns into my nose a bit, no lung issues.
I think it's a great sport to get a good conditioning.
Good luck!