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 ?

Based on the preceding passage, choose your answer for question Why is Vicki 's head potentially throbbing ?
pick from the following.
--Vicki is experiencing the flu .
--Vicki is experiencing a cold .
--Vicki is experiencing alcohol withdrawl .
--None of the above choices .
The answer is:
Vicki is experiencing alcohol withdrawl .