An aura is a symptom that comes before a migraine.
It can affect vision, touch, movement, hearing, and speaking. Roughly 30% of people living with migraines experience auras, 90% of them getting visual ones: zigzag patterns, flashes of light, blindness, and double vision.
If you have auras, you may be finding them difficult to describe. When did the aura start? How long did it last? What did it feel like?
That is because, unlike the migraine itself, your auras can be subtler, having features that are harder to pin down.