Migraine headaches are a common condition, affecting up to
1 in 5 of us. The exact cause of Migraine headaches is unknown,
and they appear to vary from person to person. They are thought
to be due to temporary changes in blood vessels in the brain,
which in turn, result in the release of chemicals via nerve fibres.
The chemicals start a process of inflammation which results in
pain. The sympathetic nervous system is triggered, making the
sufferer vomit or even experience diarrhoea. In the case of
migraine headaches, this physiological response is often associated
with certain triggers such as tiredness, smells, bright lights,
certain foods and the beginning of a woman’s menstrual cycle (hormonal).
How to tell if you have a migraine headache