I remember my sister yelling "Anna". Who's Anna? *frowns*

Name:
Age: 16
Love Status: Single, not looking.
Personality: Shy, Quiet, Alert, Cautious, Protective, Sensitive,
Extra Information: I was sitting in my room when I heard ann explosion. When I looked outside my window, all I saw was fire. I panicked and ran downstairs. *thinks and frowns* I ran straight into an unfamiliar man and next thing I knew, I woke up a few hours later, stranded in the woods and miles away from home. I lost about two-thirds of my memory and this is my only story I remember so far. Oh yeah, I remember havign a sister. She was tall, about 17 years old. I last saw her outside my window, near the dock. She ran away when she saw the flames, that's why I ran outside. To catch her. I remember her name was Alex.