Headaches and Eye Disorder...why is eye pulling toward the c

What could be the cause of these symptoms-

1.Thunderclap headache
2.Eye involuntarily pulling to the center, like 1 eye crossing by itself.
3.White spot/disruption in vision, like a picture with flash was just taken but the flash doesn't go away.
4.After initial thunderclap headache, head still hurts upon exertion like exercise.

These things happened to my sister, she has a history of migraine. She is 27, has kidney problems/1 kidney, normal weight and blood pressure. Unfortunately she is out of the country in a place where health care is not very good, so none of the doctors could help or run tests. The most odd symptom is the eye pulling toward the center. Any ideas? Thank you!