What is migraine?
Migraine is a chronic long-term condition which causes migraine attacks. There are several different types of migraine, including:
- Migraine with aura
- Migraine without aura
- Silent migraine (a migraine aura without a headache)
- Hemiplegic migraine
- Migraine with brainstem aura
What causes migraine?
The exact cause of migraine is unknown, but scientists believe it could be due to abnormal brain activity, which affects the brain’s nerve signals and chemicals, changing the way it processes information.
Migraine attacks can be triggered by particular foods, stress, hunger, tiredness, temperature, lighting, hormonal changes and alcohol.
Migraine is believed to be an inherited condition.
What are the symptoms of migraine?
The common symptoms of a migraine attack include:
- Severe head pain, including intense throbbing on one side of the head
- Sensitivity to light or sound
- Feeling sick or being sick
- Fatigue
- Problems with your sight, such as seeing flashing lights known as auras (in migraine with aura, these can occur as a warning sign just before the migraine attack begins)
Some people have migraines frequently, while others may only experience them from time to time. In some cases, years can pass between attacks.