What parts of your body were injured in the MVA's? C spine/whiplash/upper body??
I don't know if you have ever heard of thoracic outlet syndrome (TOS) for short, but some drs may call it by other names also..
Some of the symptoms can overlap with RSD, but it might be good to read about TOS also..
http://neurotalk.psychcentral.com/forum24.html
the sticky threads on both forums are good for crash course info & symptoms descriptions.