Akathisia

Akathisia is a movement disorder characterized by a subjective feeling of Inner restlessness + Mental distress + Inability to sit still.
Usually, the legs are most prominently affected. Those affected may fidget, rock back and forth, or pace, while some may just have an uneasy feeling in their body.
The most severe cases may result in Aggression/ Violence/ Suicidal thoughts.
Dopamine maybe involve as underlying mechanism
Diagnosis is based on the symptoms.
It differs from restless leg syndrome in that akathisia is not associated with sleeping but a patient may have both of them

Feeling nervous, uneasy, tense, twitchy, restless, and an inability to relax, insomnia, a sense of discomfort, motor restlessness
Marked anxiety and panic.
Neuropathic pain similar to fibromyalgia and restless legs syndrome.
Visible signs of akathisia include repetitive movements such as crossing and uncrossing the legs, and constant shifting from one foot to the other.
Other noted signs are rocking back and forth, fidgeting and pacing.

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