Can a whiplash cause pain20 years later?

Could be chronic pai: This could be a chronic pain syndrome. You should ask your physician to have you see a specilast.

Not directly.: I am assuming you are referring to neck pain. Whiplash injury is a very common cause of neck pain. However, the simple act of living is traumatic to your neck and degeneration of the spine which can cause pain occurs with passage of time. Therefore, the whiplash injury that you had 20 years ago can contribute to your current pain but all the aging you had in between probably contributes much more