--during the second accident? Any further injuries to the cervical area, or lower down?

Reason I ask is that it would be unlikely for a cervical spine injury to cause symptoms in the feet and nowhere else--a cervical spine injury that was affecting feet would likely be compressing the spinal cord in such a way as to produce other symptoms that would be of concern (and that should involve consultation with a neurologist and/or a neurosurgeon) . . .

It's certainly possible for the symptoms to be caused by something unrelated to the cervical spine--and you might want to also look at our reflex sympathetic dystrophy/complex regional pain syndrome board, especially given the timing of the symptoms after trauma:

http://neurotalk.psychcentral.com/fo...aysprune=&f=21