Acephalgic migraine is
Migraine without aura
Migraine with typical aura with headache
Migraine with typical aura with out headache
Migraine with brainstem aura
Patients with acephalgic migraine (typical aura without headache) experience recurrent neurologic symptoms, often with nausea or vomiting, but with little or no headache. Veigo can be prominent; it has been estimated that one-third of patients referred for veigo or dizziness have a primary diagnosis of migraine. Migraine aura can have prominent brainstem symptoms, and the terms basilar aery and basilar-type migraine have now been replaced by migraine with brainstem aura. Ref Harrison 20th edition page 3096, 3097 ( table 422-1)
C.N.S