In reply to Oldsign:
I had this diagnosed in 2009 after rupturing my coracobrachialis. I was given a two week course of Tanziparin and almost 12 months of Warfarin. They found a blood clot in the auxiliary vein (AV) hence all the meds.
The main advice from the NHS was centred around the Warfin, so I stopped climbing for almost a year.
I started to lift some weights instead to stave off the boredom.
It took about a year to get the all clear, part of the problem was the lack of experience and knowledge from my PCT for a Auxiliary Vein Thrombosis, and TOS. i suspect the cause was linked to carrying heavy bags on one shoulder causing the clavicle to compress the AV against the first rib
I have been told there are no longer term issues from the TOS. However I do find my right arm pumps up faster than the left, I have to spend more time warming up slowly.
Be patient, the rock will still be there and take the advice of the Physio.
Post edited at 14:01