Symptoms
The exploding head syndrome was first described in 1920 by the Welsh physician and psychiatrist Robert Armstrong-Jones. He characterized this condition as an exploding sensation in the head. Patients were awakened from their sleep by this event and the sensation persisted for several seconds. A detailed description of the syndrome was given by British neurologist John M. S. Pearce in 1989, who noted that it was most common in patients that were more than 50 years old.
Exploding head syndrome is a condition that causes the sufferer to occasionally experience a tremendously loud noise as originating from within his or her own head, usually described as the sound of an explosion, gunshot, door slamming, roar, waves crashing against rocks, loud voices, a ringing noise, the terrific bang on a tin tray, or the sound of an electrical arcing (buzzing). In some cases an instant flash of what is perceived as video "static" is reported both audibly and visually for a fraction of a second.
This syndrome can also cause the sufferer to feel an extreme rush or adrenaline kick going through his or her head, sometimes multiple times. In most cases, it occurs when they are in a state between asleep and awake. Some sufferers report familiarization with the subsequent fear or panic element such that they no longer consciously experience it.
In some cases repeated attacks lead to the sufferer gaining a fear of sleeping or resting, as this is the most common time for attacks to take place, and this can lead to the development of sleeping disorders such as insomnia.
In some cases it is isolated on the left side of the head, and seems to come from the inner ear region.
A few less common side effects include but are not limited to the following: Increased heavy breathing, loss of appetite and increased laughter.
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