MOD

I am not Mark, but I have vestibular damage from concussion. I have the 24/7 dizziness. Just to clarify - the rocking/boat feeling is not called vertigo - true vertigo is a spinning sensation. It is helpful to distinguish this when talking to practicioners trying to diagnose you.

I do not know how far in recovery you are, but early on I would feel the dizziness even while lying down. Vestibular therapy and acupuncture have helped me so that on a good day I only feel it when making certain quick movements.

What type of PT are you seeing? Are they certified and well trained in vestibular therapy? If not, I suggest you see a vestibular specialist therapist. A run of the mill PT will not know enough about vestibular issues to properly help you. You can go to vestibular.org for help finding someone and for more information.

An upper cervical chiro did not help me, but that was just my experience. He did not treat the soft tissues in my neck. My vestibular office had a neck guy that did really gentle treatments to the tissues of my neck and it helped a lot.

Did you try acupuncture for a while? It may take a while to start helping. It also is worth asking around to find out who is the best of the best.

Just my two cents. Take care.