Dawn, I'm sorry this is happening to you..
I took Topomax long time ago.
Say, 15 years?
And, I was taken off suddenly, because it was no longer accepted for long term use.
I don't know if it they changed the formulation, (that's very possible), but I have migraines like that, and it didn't really do any thing for me.

Migraines are weird animals. Do you have Thoracic Outlet syndrome? TOS.
I do.

I only mention this for your safety. I think it is an NSAID, and they can be very nasty on the tummy. Try some Maalox, or something like that when you take it, or definitely take it with food!

Be Well!

Pete