Translation of observador

I fell asleep but woke up in the middle of the night. My stomach turned upside down and I could not hold myself anymore. I needed to vomit and ran to the bathroom. This occurred three times.
It is a thought that someone may have if he does not know anything about another group of individuals. He hears many stereotypes and blindly creates his own images in which he strongly believes.
To be honest, we did not understand one word of what he was saying, because his English was so terrible. Or maybe it wasn't and it was only his accent which we could not grasp. To us it was Chinese.