I too am suffering from DVT sub clavian and the pain I have is very severe at times. I am getting pain in my neck and have quite a bit of swelling in my arm and shoulder at the base of my neck. The condition started about 30 days ago. I had an operation to open the vein but it failed. Now I am trying to get medical help here in the U.S. to see what I can do about it. I don't know of a email address for you, but if you would like to correspond directly with me, please feel free to write me .I will be happy to pass along any information I have so far. Best Regards, Gov.