Hi Michele,
I'm going to make a copy of this post and place it on our RSD forum for you.
the link to it-
http://neurotalk.psychcentral.com/thread51211.html

[I was injured at the school where I taught]
What was the nature of your injury?

Have you had a MRI with this , or recently?
{thinking for the arm pain sx - was the c spine checked?}