posttraumatic vertigo

post·trau·mat·ic ver·ti·go

(pōst'traw-mat'ik vĕr'ti-gō)
Sense of imbalance that follows trauma, most commonly occurring when an irritable labyrinthine focus develops during the weeks and months after the incident. Other causes of posttraumatic vertigo include vestibular lithiasis, perilymphatic fistula, and endolymphatic hydrops.