Wow, PEs are no joke and the fact that they had to used the clot buster is an indicator of how serious they were because they don't do it very often. The good news is that breaking up of the clots will pretty much automatically relieve the pressure on the right ventricle of your heart. How scary. Glad that you're starting to feel better.
Oh my goodness womet - I hope you get better quickly! I have clotting issues, too, so if you have any questions regarding blood thinners, etc, just say the word.