An overwhelming sense of tiredness or complete exhaustion that does not go away with sleep or rest.
A condition that causes widespread pain all over the body, and can also cause fatigue, headaches, muscle stiffness, and difficulties with sleeping and concentrating.
The opening at the base of the skull.
Functional neurological disorder (FND)
(and non-epileptic attack disorder)
A condition in which people experience neurological symptoms but upon examination and investigation there is no clear physical explanation for them, i.e. damage to the brain or a nerve.