another sticky thread to explore is "Our Useful Links - Websites, Articles & Polls " -
http://neurotalk.psychcentral.com/thread84.html
The helpful sticky threads are located in the upper section on the main page of each forum
I was thinking it sounded like blood flow issues to me too.
this website is down tonight but maybe it will be working when you check back here later on.
It shows a simple few tests a Dr or PT should know how to do, that will help to sort out if TOS might be a possibility for you or not.
One of them is something you can do on your own.
a small % of "normal" folks do lose pulse like this too - but will not have TOS or TOS like symptoms...