a hunch
Tuve un presentimiento de que algo agradable iba a ocurrir.
I had a feeling that something nice was going to happen.
I had a feeling.
It's like a premonition.
— Indagine su un cittadino al di sopra di ogni sospetto (1970)
It was just a feeling.
I had a feeling.
¿Vino hasta aquí sólo porque tenía un presentimiento y nada más?
Did you come all this way just because you had a hunch, and nothing more?
— Psicosis (1960)
It's a feeling.
Tom tuvo un presentimiento de que Mary estaba viendo a alguien más.
Tom had a feeling that Mary was seeing someone else.