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.
It is really hard to tell if it is just atypical migraine or epilepsy. Since all your tests have been normal and you do not have any risk factor for stroke, TIA and stroke can be ruled out.
I would suggest you to discuss the possibility of trying out ambulatory EEG. In some cases of epilepsy the EEG picks up abnormality only during an episode.
This could be atypical migraine also because migraine can present with all these symptoms with or without headaches. I would suggest you to continue with Topamax and see if it relieves your symptoms.
Do keep us posted!
One of those conditions is called Lupus.
Hope this helps.