Thank you for posting your query at DoctorSpring.com
I have noted your mother's symptoms. Epilepsy is quite common after head injury.
Regarding behavioural changes after head injury, they are not as common as epilepsy, but are seen in clinical practice.
In any case, she needs medical treatment for both epilepsy and behavioural changes. An MRI of brain, however, should be done to exclude any unrelated cause for her current symptoms.
I hope it helps.
Dr. Sudhir Kumar MD (Medicine), DM (Neurology)
Senior Consultant Neurologist