Here we have incomplete information about the type of headache e.g. its site on the scalp
, what are the associated symptoms so its difficult to establish the type of headache with this information but one thing is sure that tophamax i.e. topiramate
is not causing the rest of the symptoms that you have described. As your neck and jaw are stiff kindly get ENT surgeon and a dental surgeon opinion to r/o a local cause like TM joint problem. And if your headache is not relieved kindly go back to your neurologist
and bring to his notice that the drug is not effective. Hope this helps you.