Classical Migraine OR Epelipsy?

My sister, 10 years old,expriences siezures and some times after it, disorders for a short time in her body such as walking problems,lisp in speech etc. CT scan shows a network of nerves concentrated at one place, that is, a big/major nerve becomes smaller(not gradually).Some Doctors say, the electrical impulses thus cause the siezures due to this innate defect in the nerves. However some doctors think, she is suffering from a classical migraine. She is being treated on Tegral ( Carbamazipine) for 5 years and Epilium Syrup for about 2 and a half years. I know this is not an appropriate forum for discussing issues for migraine, but I need help. This is an open discussion and a case for everyone, Doctors or Individual persons. Your kind advices would alleviate my and my family's anguish. Muhammad Junaid