I was recently put on Topamax by my doctor at the pain clinic for treatment for herniated discs in my back. I've been taking this med for six days now and haven't experienced any of the side effects she warned me to expect. I have, however, been plagued with insomnia since the third night on this medication. I spoke w/ a pharmacist and he said it usually has a calming effect. Anyone else out there having or had the same experience w/ this med as me or should I be looking for another cause for my sleeping problem? Thanks for any replies!