YOU SAID:

I was playing a game and then I lost my head!

INTO JAPANESE

私はゲームをしていた、そして、私は頭を失った！

BACK INTO ENGLISH

I was playing the game, and I lost my head!

INTO JAPANESE

私はゲームをしていた、と私は頭を失った！

BACK INTO ENGLISH

I was playing the game, and I lost my head!