Some of the things you mention make me think of thoracic outlet syndrome (TOS for short).
what kind of work or hobbies do you do?

Desk job/repetitive motions?
forward head/arms/shoulder postures?
any whiplash or car accidents/sports with head or upper body impacts?

useful sticky thread for TOS info and other RSI injuries -
might be good to read before neuro appt
http://neurotalk.psychcentral.com/thread84.html


OH -Just noticed this-
[[I do a lot of standing and working at a desk as I am a teacher. ]]