Dizziness, nausea, spinning. What's going on?

Dizziness, nausea and dizziness, first of all, consider the disorder of vestibular function, resulting in a series of diseases such as vestibular neuritis, otolith, vestibular migraine, Meniere disease, etc., will cause the above situation. Secondly, consider the blockage or stenosis of cerebral blood vessels, which will also cause dizziness and nausea.