Symptoms of myoclonus dystonia include:

  • abnormal, sometimes painful, repetitive movements usually in the arms, trunk, and neck
  • myoclonic jerks
  • psychological symptoms such as obsessive-compulsive disorder, anxiety or lowered mood (depression). (These psychological impacts are more likely if the myoclonus dystonia is caused by a mutation within the DYT11 gene.)

Stress and anxiety are known to exacerbate the symptoms.