At first my vision in my left eye way suddenly wavy or wiggly around the perimeter, I felt dizzy and off balance . That is over now but I got a headache a few minutes after this happened. It is not severe, it started between my eyes and now is there and on the right side of my head. I feel slightly nauseated. Should I be concerned? I am female, 65 years old. No previous heart problems or strokes, strong family history of fatal heart attacks and two siblings with a fib.