Time Frame
An acephalgic migraine usually lasts between four to 72 hours.
Symptoms
Migraine symptoms include vomiting, dizziness, nausea, sharp pain, sensitivity to bright light, sensitivity to noise, blurry vision and pulsing pain.
Prodome
Phase One is the prodrome, which happens hours or days before the headache. The symptoms of this phase are altered modes, irritability, depression, fatigue and yawning.
Aura Phase
Phase two of a migraine, the aura phase, happens gradually over five to 20 minutes and generally lasts an hour. Migraine suffers see dazzling lines and auras around objects while shying away from bright lights.
Pain Stage
The third stage of a migraine is the pain stage, which is accompanied by throbbing, nausea and dizziness. This is the longest phase of a migraine, and it can last up to 72 hours.
Postdrome Phase
The postdrome phase, the fourth phase of a migraine, leaves a person feeling tired, experiencing head pain, mood changes, weakness, stomach pains and discombobulation.