Why does the "gut feeling" almost always ring true?

I woke up this morning with a bad feeling in the pit of my stomach. Not just everyday stress, but I could just tell something wasn't right. I got ready, went to work, kids went to school etc.

Around 3pm, I got a call from my wife. My bathroom was on fire. Long story short, my wife and kids are okay, pets are okay, just a lot of smoke and water damage. Have to fully gut it.

Of course we are in the process of changing the home over into our name, so our insurance wasn't set up yet. This is all out of pocket.

So I wonder. What is it with the "gut feeling"? Why can we sense when something isn't right, even hours or days ahead? My wife mentioned this morning that something wasn't right, but she couldn't tell what. I didn't play into it but I woke up feeling the same. I just don't understand I guess.

Any insight?