These are seizures, migraines, mini stroke
affecting memory areas etc. Is he a hypertensive and
how is his blood glucose control? A poor glycemic control can predispose to hyperglycemia and ketones in urine, increasing risk of stroke. He may need medicines to dissolve any clot if was detected on CT head. Systemic evaluation including glycosylated hemoglobin, electrolytes and renal function indices are important and need to be checked and corrected.