mrniceguy,

Welcome to NeuroTalk. I agree with JBuckl for the most part. What was not mentioned is speed bumps can exacerbate a whiplash condition in the upper neck. That can be different than the other head movement issue.

The head movement exercises the CN suggests are more of a vestibular rehab, reconditioning treatment. This sounds like your head sensitivity may be misdiagnosed as vestibular. But, it is one of the many symptoms of PCS that need to be considered. Have you had a full vestibular assessment ?

Do you have a sense of dizziness after head movements or speed bumps ? Or, some other symptoms ?

The anxiety issue is worth addressing. What may be a minor short term symptom can be magnified to a much more intense and longer lasting symptom due to anxiety. What are you doing to address your anxiety issues ?