Many patients with functional dizziness look back on a long odyssey to numerous doctors, because no organic causes could be found. Now for the first time, an experiment at the Technical University of Munich (TUM) has identified possible causes of the disorder: problems with the processing of sensory-motor signals in the brain that resemble those associated with dizziness due to organic causes.
source https://www.lifetechnology.com/blogs/life-technology-news-blog/perception-disorders-may-throw-those-affected-off-balance