Sting - Drabble

She wasn't sure what had bit her, but the tiny mark on her wrist itched. Idly she scratched at it, trying to stay awake in class. She wasn't meant for these evening courses, ever since the semester had started she had felt exhausted to the point that the room would sometimes spin when she stood up. Her roomate said she might be low on iron and had suggested she make an effort to eat more red meat or dark greens and that had seemed to help a little. As she walked home from class under the glow of lanterns she spotted a young man smiling at her. He seemed familiar so she smiled back.