Welcome to the Migraine and Headaches Forum! This forum is for questions and support regarding migraine and headache issues such as: abdominal
migraines, headaches caused by allergies, cluster headaches,
headaches, headaches in children, migraine headaches, sinus headaches, tension headaches, visual disturbances.
Hope you are feeling better.
Basilar migraine is a type of migraine which has aura symptoms arising from the brain stem like vertigo, impaired speech, blurry vision, ringing in the ears, bilateral tingling numbness, and altered level of consciousness. There is no motor weakness in this type of migraine.
Your symptoms do seem to be due to basilar migraine. It is very important to rule out brain tumors, AVM, stroke and seizure disorder. Since these have already been ruled out in your case by MRI, EEG and blood tests, basilar migraine seems to be the likely diagnosis.
I would suggest you to take good care of yourself and seek consultation with a migraine specialist.