Hi Missa,

One tip- don't tell the Drs that you found all this info on the internet , websites or forums - many of them don't like the patients to learn stuff - we may learn more than them -or they think it influences our symptoms or ....

Maybe say something like "someone told me it might be something called thoracic outlet syndrome, what do you think?"
and depending on what they say and do at that point...
- might just give you the brush off - or pooh pooh you
- might do a few more positional & pulse tests

sounds like you need a bit of a crash course on TOS for tomorrow -
I think our useful sticky thread will help.
http://neurotalk.psychcentral.com/thread84.html
the first and second posts have a condensed list of good sources of info.