The symptoms you describe in your neck and upper back would be consistent with a whip lash injury
. This injury is usually treated by physiotherapy
and anti-inflammatory medication. Tendonitis
of the wrist is very common particularly on the radial border at the base of the thumb. This may be made worse by a car accident. The treatment is tendon gliding exercises, anti-inflammatory medication, local anaesthetic
injections and occasionally surgery for tendon pulley release. When extremely tender a wrist splint can be of benefit. No special tests are required for these diagnosis but I would seek the opinion of your Dr who may want to X-ray your neck and upper back to ensure you do not have any fractures as a result of your injury.