Hypnic headache (HH) is a rare primary headache disorder (primary headache disorders are those that cannot be attributed to another condition.) It's most identifying feature is that it only develops during sleep and wakes the sufferer.
The International Headache Society's International Classification of Headache Disorders, 2nd Edition (ICHD-II), is the "gold standard" for diagnosing and classifying headache disorders. Here are the description, diagnostic criteria, and symptoms of HH as...
Read morePregnancy Tracker: 24 weeks, 3 days Size of the Baby: Just over a pound, but nearly fully formed! Biggest Obstacle: Accurately judging... Read more »
Nighttime acid reflux, as well as atypical symptoms of gastroesophageal reflux disease or GERD (cough, hoarseness, asthma-like symptoms) is... Read more »
We left off talking about the circadian rhythm and how it is primarily regulated by light during the day, helping us be more alert, and... Read more »
Full Question:I am 30 years old. For the past two years, I have been waking up with terrible headaches (about 85% of the time). The pain is... Read more »
Full Question: I have been waking up around 4:00 am during deep sleep with a headache that starts in the back of my head then moves... Read more »
Source: HealthCentral Encyclopedia
Sleep terror disorder or "night terrors" is a condition that occurs during stages 3 or 4 of non-rapid eye movement (NREM) sleep. It is characterized... Read more »
Source: ADAM Encyclopedia
Excessive urination at night is a condition in which you wake up several times during the night to urinate. Waking up several times a night to... Read more »