Whiplash is caused by an over extension of the neck and is very common in road traffic accidents. The effects of whiplash vary from person to person. Some people have mild symptoms while headaches can be prolonged and severe in some people. The back and neck pain can resolve in a matter of months or it can take years or even lead to permanent disability. If you were involved in an accident that was somebody else’s fault and you are suffering from whiplash you may be entitled to compensation.