Bright flashing dots or lights, blind spots, wavy or jagged lines
Five phases of a migraine can often be identified:
Prodrome: A variety of warnings can come before a migraine. These may consist of a change in mood (such as feeling high, irritable or depressed) or a subtle change of sensation (such as a funny taste or smell). Fatigue and muscle tension are also common.
Aura: This is commonly a visual disturbance that precedes the headache. Some people who have migraines develop blind spots (called scotomas); see geometric patterns or flashing, colourful lights; or lose vision on one side (hemianopsia).
Headache: Although migraine pain usually occurs on one side of the head, 30 to 40 per cent of migraines occur on both sides. You may experience throbbing pain. More than 80 per cent of people with migraines feel nauseated and some vomit. About 70 per cent become sensitive to light (photophobia) and sound (phonophobia). This phase may last between four and 72 hours.
Headache termination: Even if untreated, the pain usually goes away with sleep.
Postdrome: Other signs of the migraine (such as an inability to eat, problems with concentration or fatigue) may linger after the pain has disappeared.
To provide even greater transparency and choice, we are working on a number of other cookie-related enhancements. More information