The whiplash/concussion mix may have misaligned your c1/c2 or other sections of the C spine.
Info-
www.upcspine.com
http://www.upcspine.com/self.htm

If the c spine is stable and no issues that would be compromised by expert chiropractic, or maybe just an evaluation by a highly skilled chiro might be helpful.

[tingling and numbness in my right arm]
Are you having neck muscle spasms?
How is your upper body posture?
head /shoulders hunched or forward of the body?
they can cause many problems as well as trigger points that refer pain & sx to other parts of the body.