The causes of migraine are not completely understood. They are likely to relate to an unusual electrical charge in the neurons that sets off the brain's pain receptors.
Migraine may be hereditary. Around 4 out of 5 people who experience migraine report a family history of the condition, according to the National
Headache Foundation.
There are many triggers for the condition, and these vary from person to person. Keeping a record of factors leading up to a vestibular migraine, such as a bad night's sleep, can aid a diagnosis and help someone to avoid the triggers that could lead to an episode.
Common triggers include:
stress and anxiety
food or drink, such as caffeine, alcohol, or dairy products
lack of sleep or too much sleep
environmental factors, such as bright artificial lights
hormonal changes, such as during menstruation