Vertigo
You feel dizzy, lightheaded, and nauseated, unable to easily orient yourself in space. You have a −(IE) penalty on all Dexterity checks and saving throws, including initiative and Dexterity-based attack rolls, until you take a short rest. You feel Nausea and will vomit if you fail a DC 8 + (IE) Constitution saving throw, which will leave you incapacitated for 1d4 rounds. If this is a triggered trait, quick movement and stress are common causes.
Real-world Examples
Benign Paroxysmal Positional Vertigo, Vestibular Neuronitis, Meniere’s Disease, Labyrinthitis, Perilymph Fistula, Superior Semicircular Canal Dehiscence Syndrome
Assistive Options
Depending on the cause of the vertigo, certain specialized exercises or rest can help. For some, reducing salt, caffeine, and alcohol helps. Talk to your GM about whether yours can be managed and by what means.