Shudder syndrome in 2 year olds is a benign condition that causes brief and rapid shuddering movements of the 2 year old's head and upper body.
Shuddering syndrome can also occur children of other ages but it's more common in 2 year olds.
The shudder syndrome and shuddering attack episodes, which can resemble shivering are often short lived and often last a few seconds and can also occur multiple times a day.
Shuddering attacks in shudder syndrome are not epileptic seizures and don't cause any loss of consciousness or other neurological problems.
Although the shuddering attacks and movements can be mistaken for epileptic seizures.
With shudder syndrome a child will experience brief, rapid shivering movements such as quick, jerky movements of the head, neck, shoulders and sometimes trunk.
The shuddering attacks and movements are often not triggered by any specific event or emotion and occur without warning and they tend to last only a few seconds.
Children may experience the shivering movements multiple times a day and sometimes as many as 100 times a day.
The child will remain awake and aware during the shuddering and there's is no fatigue, confusion or other after effects that follow the shuddering episodes.