It’s not always possible to identify a trigger, but the following things may cause migrainous headaches in some people:
- Dietary factors- cheese, chocolate, red wine, citrus fruits, and foods containing an additive called tyramine.
- Excessive dieting.
- Psychological factors- stress/anxiety, depression and sleep disturbances.
- Environmental triggers- bright lights, loud noises or strong smells.
- Medications- for example HRT and the contraceptive pill.
- Menstruation and the menopause.