Thinking StrAngelY

Today I thought differently but it wasn't the usual thing
I thought of oxygen as nitrogen, so I was on fire
I thought of liquid as poison, so I didn't drink any
I thought of the sky as the ground so I stood on my head
I thought of my room as a dungeon so I was it's prisoner
I thought of my head as a computer so my mouth was it's speaker
I thought of my girl... But things only got bleaker.