I am not convinced call hospital and request x-ray reports. Can't tell you how many times patients tell me there was nothing on X-ray and when I look there is significant degeneration. I saw a Aussie rules case that had a tvp fracture who was also told that everything was normal when they should of said you have a fractured spine but it is stable so we arn't going to do anything for you.
Look for tvp misalignment in x ray and deep palpating while laterally flexing the cervical spine to examine this.
Are there any neurological signs at all?