Common cause for sudden drastic blurring of vision in both eyes, onset of dizziness with nausea, headaches, ringing ear in a 62 yo diabetic male?

Acute stroke. B"sd serious buisness. First thing to think about is a brainstem stroke with is a minutes count emergency. Other possiblity would be labyrinthitis, which can be very symptomatic with vertigo, nausea and vomiting. Would the presume that the patient is already under emergency care and IS getting better.