<unk>  is a DSM-IV diagnosis which describes neurological symptoms such as extreme weakness, paralysis, sensory disturbance, seizure and/or attacks that may resemble a known organic disease such as epilepsy or dystonia, but which cannot be currently attributed to neurological disease.
Conversion disorder
Malingering
Bruxism
Diencephalic syndrome
Transient ischemic attack
Watershed stroke
Ischemic stroke
Post-concussion syndrome