Had a DVT and PE a year ago?

I had a DVT in my right leg that I left untreated for a week untill I coughed up blood and ran off to the ER and found I had a blood clot from ankle to hip that resulted into having PE. I spend a week in the hospital, and have been on cummadin ever since. My problem is, that my leg is always in pain, cant walk to far before it feels like its going to give out. The clot tore up all the valves in the vein, and the vein itself. I now have an appointment comming up with a prosthetic specialist. Am i going to lose my leg or are there surgical precedures to fix this. I live on my vicidin because of the pain. I just want to have a somewhat normal life again. I also just got diagnosed with Lupus Anticoagulant, which im still trying to figure that all out. I am a 34 year old male that used to have a fast paced active life! I just want some of that back!!