hello my name is pireh yusra.my sister was diagnosed with migraine aura..doctor diagnosed it on the basis of symptoms. She is been taking topiramate and cebelium for 13 months initially her condition started to get better and attacks become less frequent. but now when treatment is done she has started encounter low blood pressure two to thrice a day... and muscle pain occasionaly with headaches.. is it because of medicines or what? and what to do to cope this low bp all the time? awaiting for response. thanks