It sounds like your neuro is doing the "Try this and tell me if it helps." method of treatment. There is no consensus about using Topamax for Post Concussion Syndrome symptoms. Treating the migraines should be done with the concussion being serious consideration.

It is not uncommon for doctors to treat concussion symptoms as if they are not related to a concussion. Since very few doctors understand concussion, they tend to treat the PCS patient as a head ache patient only.

It is what makes PCS such a struggle.