YOU SAID:

I begin to pass out, and my head hit the wall: bam!

INTO JAPANESE

私は気絶し始め、私の頭は壁にぶつかりました：バム！

BACK INTO ENGLISH

I started fainting and my head hit the wall: Bum!

INTO JAPANESE

失神し始め、頭が壁にぶつかった：バム！

BACK INTO ENGLISH

I started fainting and my head hit a wall: Bam!

INTO JAPANESE

失神し始め、頭が壁にぶつかった：バム！

BACK INTO ENGLISH

I started fainting and my head hit a wall: Bam!