Hi Sam1122. I'm not sure if my own experience will be helpful to you but Topomax was the very first preventative I tried back in 2012-ish. It gave me all kinds of crazy side effects, like feeling very drunk (which included dizziness, being lightheaded, unfocused, etc.) and very odd moods that didn't make sense - again, like being drunk and not in complete control. I don't recall tingling or trembling, but then again, it has been just over 6 years and since it made me feel "high," I could have had those symptoms and simply forgotten. I eventually acclimated to the drug and the crazy side effects diminished, but had to go off of it anyway after giving it enough time to see if it worked and realizing it didn't. I'm not sure how long you have been on Topomax, but if it hasn't been long, it may just be your body getting used to the drug? If your side effects/symptoms don't decrease over time or if it is interfering with your life or worrying you, I'd talk to your neurologist or PCP about it and get some insight from a trained professional. Best of luck to you and I hope everything goes well for you and that you get the relief we all seek! 😀