I had a doc give me muscle relaxers for migraines once. I thought he was a quack. I can't recall exactly which one or the dosage. I do remember they made me lose weight because I didn't eat after work. I would come home, take them and go to sleep. I would go to bed at 6pm and not wake up until it was time to go to work. He even gave me Zoloft. I think my migraines were stress related. I used to get them almost daily. Now I rarely get them.
I hope migraines aren't directly related to ms. My migraines used to put me down for the count. I used to see spots and feel nausea with the unbearable pain. I don't think I could take the daily battle of ms along with migraines.

Keep us posted about the topomax. Hopefully it works for you and eliminates the pain completely.