headache + vomiting + visual aura
migraine with aura
retro- orbital headache + rhinorrhoea + lacrimation
cluster headache
drowsiness + vomiting + seizure
raised intracranial pressure
occipital headache + vomiting + neck stiffness
subarachnoid haemorrhage
headache + visual obscurations + nausea
benign intracranial hypertension