Sorry if I’ve confused you. True vertigo has to be rotary either the room appears to spin (objective vertigo) or you feel you are spinning ‘internally’ (subjective vertigo). Specialist told me each type of vertigo and each type of dizziness is indicative of different conditions. Presumably affects different parts of the brain/system. Fuller details on link.
Imbalance, Vertigo, Dizziness - Different types of vestibular symptoms
Best way to quit caffeine is cold turkey or so they do say. Sure there are detailed threads on that too if you search.
The confusion resulting from the onset of any chronic condition must take its mental toil. Ramps up the anxiety for many hence brains that won’t shut down. Amitriptyline should help with that. Otherwise on line CBT maybe.