LOCATION AND SYMPTOMS
Sudden, severe onset (‘thunderclap’) of pain. In early stages, may mimic migraine or cluster headaches. Symptoms may also include loss of consciousness, a stiff neck, and double vision.
PRECIPITATING FACTORS
Family history, uncontrolled hypertension.
TREATMENT / PREVENTION
Urgent hospital treatment should be sought. Treatment may include surgery, and medication to keep blood pressure under control.
