Migraine occurs due to a sudden widening of blood vessels and increased blood supply to the brain, and surrounding nerves to blood vessels are irritated. Typical signs of migraine are headaches, nausea, aura (visual disturbance, feeling of restlessness, tingling on parts of the body).
Migraine may exist because of genetic reasons, such as vestibular migraine where neurones and vessels are irritated or inflamed by a sudden rise in blood flow.
Menstruation can be a trigger for migraine. Over 50% of migraine in women occurs around menstruation and ovulation due to oestrogen level reductions and lower serotonin levels.
There can be dietary triggers and I consider neck and back problems which could cause migraine.
‘Leaky gut’ could be a cause of gastrointestinal disturbance and then migraine problems.
Fish oil can raise protective prostaglandin levels to reduce migraine frequency (and period pains).