I hate having migraines.
Signs of a migraine attack are first signals such as Visual disturbances, dizziness and nausea or vomiting.
Around the time of the initial symptoms, other symptoms follow such as sensitivity to light, noise and smell, temporary numbness on the affected side, pins and needles,lack of co-ordination or inability to think clearly or perform normal activities. It's not the case that all symptoms have to be present.
Different triggers will effect a migraine in migraine sufferers. For instance......