How to know the difference, aura migraine and aura seizure? Get no headache. Dizzy, blind, confused, hot, speech prob, heart palput. Dad had grand mal seizure.

Hard to tell. The best way to tell would be either having an EEG while you have the symptoms, or having a headache or a seizure after the symptoms. But if these symptoms are isolated, and this is all the information we have, it cannot be definitely called a seizure or a migraine aura.