Thanks Winnerhofer!
Yes the anticoagulant treatment with Sintrom is making my blood thinner and removing the clots. Are there any medicines or anything else, like vitamin K, rivaroxaban or NOACs, available now or in the future, that would make the anticoagulant treatment unnecessary?
My double PE was quickly cured by Heparin and a lot of oxygen, and a lot of rest, so after a few weeks the heart muscles didn't suffer so much and my physical condition is fortunately as before I had the PE's.
Remains the question if I ever will be able to get my Class I medical again.
Thanks for your help and your best wishes!