Why Do I Have Migraines When I’m Asleep?

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Alternative Names

Histamine headache; Headache - histamine; Migrainous neuralgia; Headache - cluster


Symptoms

A cluster headache begins as a severe, sudden headache. The headache most commonly strikes 2 to 3 hours after falling asleep, usually during the dreaming (rapid eye movement, or REM) phase. However, the headache may occur while you are awake. The headache tends to occur at the same time of day.

The pain occurs on one side of the head. It may be described as:

  • Burning
  • Sharp
  • Steady

The pain may...

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