It did n't last long , maybe one whole minute , but it was a start . He had n't thrown up in 4 hours . I was timing it . Everything was down to hours and minutes now .
What might be the reason for his situation .
Pick the best answer from the following options:
- None of the above choices .
 - He finished a light exercise .
 - He had too much to drink .
 - He ate a probiotic .


He had too much to drink .