Do as much research as you can, she says, and go with your gut -- find someone who will answer your questions.

CNN: Food allergy diagnosis 'an inexact science'

"You need to go with your own gut instincts and not let people around you push you into things, particularly if they're consultants, because when the campaign's over, they disappear, " Huckabee said.

NPR: First Race Teaches Huckabee to Trust His Instincts

And ultimately you have to go with your instinct, your gut sense of the world and of men.

WSJ: Gut Time

In the course of a single song, Brandi Carlile can seduce you with a whisper and then go right for your gut.

NPR: Brandi Carlile Goes Straight for the Gut