Research the causes of these symptoms that are similar to, or related to, the symptom Enlarged liver: 1  Enlarged spleen (1232 causes) 2  Hepatomegaly (1314 causes)  Hepatitis (42 causes)
Night terrors strike children, usually between the ages of 3 years and 8 years. They rarely occur in older children, adolescents and adults. In both adults and children, night terrors may be caused by unsettled psychological conflicts, upsetting events or tiredness.
Night terror, also known as sleep terror, is a sleep disorder, causing feelings of terror or dread, and typically occurs during the first hours of stage 3-4 non-rapid eye movement (NREM) sleep. Night terrors tend to happen during periods of arousal from delta sleep, also known as slow-wave sleep.