Read the following context and answer the question.
Context: Vicki fluttered her eyes open and was welcomed with an intense pain throbbing in her head . She groaned and rubbed her eyes when she was struck with realisation that she was not in her own bed . She panicked and sat up straight , her foggy brain slowly coming to recognise the room as Henry 's . How did she get here she wondered ?
Question: Why is Vicki 's head potentially throbbing ?
Answer:


Vicki is hungover .