My wife age 79 feels very dizzy (the room spins)
suspected Posttraumatic vertigo.
Hello and welcome to 'Ask a Doctor' service.
I have read your query and the additional comments, here is my advice.
Posttraumatic vertigo is a well-known condition after blunt trauma of the head, neck or craniocervical junction.
The most common form of vertigo after trauma is benign paroxysmal positional vertigo (BPPV) that is generally triggered by certain head and neck positions and caused by changes in the inner ear apparatus after trauma.
Other forms of vertigo may be linked to brainstem concussion, etc.
This condition is evaluated and treated by an ENT Doctor, so, I suggest you consult with your ENT.
Hope you found the answer helpful.
Let me know if I can assist you further.