Functional Neurological Disorders (FND) describes neurological symptoms like limb weakness, tremor, numbness or blackouts, related to the movement and sensation parts of the nervous system.
Unlike a stroke or brain injury, Functional Disorders are a “software” issue of the brain rather than a “hardware” issue affecting the nerves and tissues.
There are some excellent resources for affected young people, their families and clinicians available online
A thoughtful and comprehensive guide to Functional Disorders by Professor Jon Stone, Consultant Neurologist at the Royal Infirmary of Edinburgh and University of Edinburgh
Great Ormond Street Hospital Functional Symptoms Resources
This page explains about functional symptoms in children and young people and how they can be managed
Here is one factsheet and there is much more information on the website linked above.
Great Ormond Street Hospital Functional Tic Resources
Including information on the difference between Tourette Syndrome, classic tics and functional tics
Paediatrics.Online 