YOU SAID:

i woke up with cold water being poured over my head

INTO JAPANESE

私は冷たい水が私の頭の上に注がれて目が覚めた

BACK INTO ENGLISH

I poured cold water over my head and woke up

INTO JAPANESE

私は私の頭に冷たい水を注がれ、目が覚めた

BACK INTO ENGLISH

I poured cold water on my head and woke up

INTO JAPANESE

私は私の頭に冷水を注ぎ、目が覚めた

BACK INTO ENGLISH

I poured cold water on my head and woke up