I have a tens and it doesn't help me with migraines unfortunately. Mine are either sinus, or used to be because of a wisdom tooth I had up in my sinus which has since erupted and is moving into my top jaw. I would get wicked migraines from it when it was up in my sinus. Mine are usually related to sinuses and I snort cold water to cool them off, then let my head drop forward so the water drains and boy is it ever hot when it drips out!

Then I will breathe in my nose in front of one of the fans here, that helps alot. I hope the topamax helps you Nikko, hang in there it will get better, I hope you feel better soon.