What Causes Low Heart Rate, Body Pain And Seizures?

My 36 year old daughter goes to hospital after hospital and to her doctor an average of at least once a week and they can t seem to find anything wrong with her. She aches all over and the latest symptom is what her husband reported as a seizure. She was shaking all over and unresponsive so they called an ambulance. I m getting ready to go get her kids, but we keep wondering what in the world can be wrong. This has been going on over a year. First, low blood pressure and heart rate, then aching all over, now seizure. She was referred by the hospital last night to a neurologist but told by her doctor that he wouldn t give her a referral. Another hospital discharged her after a nights stay with no referral. We rally don t know what to think since no tests have ever shown anything wrong with her! What else can we/she do?