You have to learn to trust/follow your 'instincts'. [=to trust your feelings about what is right or true even when you cannot be sure that it is right or true]
Her 'instincts' told her that something was wrong. [=she believed that something was wrong even though there was no obvious reason to believe it]
Her 'killer instincts' have helped her become one of the top tennis players in the world.
(..) Hunted by scavengers... Haunted by those I could not protect. So I exist in this wasteland... A man, reduced to a single instinct: Survive. Blood group -O, high octane. Universal donor. Max? Is that you? (..)2015 Mad Max: Fury Road