Sister is 58 years old. Overweight. Has been experiencing bouts of lightheadedness / dizziness. Ground moving (when it isn t), sharp pain headaches, periods of confusion. She had MRI (it was ok), Heart Sonogram (some anomalies), EKG (mostly ok), still experiencing symptoms every other day or so. She wore a heart moniter for 3 days, saw some weird things. She works for foreign service in Turkey, but also dealing with cardiologist from state dept. What could be going on with her? She told me not to worry, but I am.