Daytime sleep disorder; Cataplexy
The most common symptoms of narcolepsy are:
- Periods of extreme drowsiness every 3 to 4 hours during the day. You may feel a strong urge to sleep, often followed by a short nap (sleep attack).
- These periods last for about 15 minutes each, although they can be longer.
- They often happen after eating, but may occur while driving, talking to someone, or during other situations.
- You wake up feeling refreshed.
hallucinationsmay occur during the stage between sleep and wakefulness. They involve seeing or hearing, and possibly other senses.
- Sleep paralysis is when you are unable to move when you first wake up. It may also happen when you first become drowsy.
- Cataplexy is a sudden loss of muscle tone while awake, resulting in the inability to move. Strong emotions, such as laughter or anger, will often bring on cataplexy.
- Most attacks last for less than 30 seconds and can be missed.
- Your head will suddenly fall forward, your jaw will become slack, and your knees will buckle.
- In severe cases, a person may fall and stay paralyzed for as long as several minutes.
Not all patients have all four symptoms.
Signs and tests
The doctor will perform a physical exam and order blood work to rule out conditions that can cause similar symptoms. Conditions that can cause excessive sleepiness include:
- Insomnia and other
sleep disorders Restless leg syndrome Seizures Sleep apnea
- Other medical, psychiatric, or nervous system diseases
Other tests may include:
ECG(measures the heart's electrical activity) EEG(brain activity measurements)
- Monitoring of breathing
- Genetic testing to look for narcolepsy gene
Tests will also include a