I hit my head when i was backing my car in i was dizzy but now i have a headic my car hit the pole when i was backing no damage to my car called dr?

Head and neck pain: While backing up your car, if you had an injury, it is called a whiplash type of injury which may cause muscle spasms as well as (if the impact was high) damage to the small joints inthe spine. This may lead to inability to extend the neck and constant pain. If it persists, see a pain physician for proper evaluation. Good luck.