Early (minutes to hours): |
Headache |
Dizziness or vertigo |
Lack of awareness or surroundings |
Nausea or vomiting |
Late (days to weeks): |
Persistent low-grade headache |
Light-headedness |
Inattention and impaired concentration |
Memory disturbance |
Easy fatigability |
Irritability and low frustration tolerance |
Intolerance of bright lights |
Difficulty focusing vision |
Intolerance of loud noises and tinnitus |
Anxiety and depressed mood |
Sleep disturbance |