Thank you for posting your query.
Aunt B has most probably suffered a stroke of posterior circulation, involving cerebellum
(parts of brain located at the back). This type of stroke is serious, with 80% people either dying from it or surviving in a vegetative state. The outcome is also poorer in older people.
Seizures can occur in stroke, either at onset or after stroke.
Seizures are also called fits and they are not same as stroke. Stroke refers to lack of blood supply to a part of brain resulting in paralysis
which is long term deficit, whereas seizures are temporary loss of consciousness
or involuntary movements
I hope it helps.
Dr Sudhir Kumar MD DM (Neurology)
Senior Consultant Neurologist