sometimes i get the feeling that I should limp into a hand, but I won't do it because it's a bad hand (Q 6os for example). I'll get this feeling that not going in was a mistake, and then the flop will come out 66 or Q6 and I'll feel dumb.
This happens like once every 100 hands or so.
I rely on my "gut" alot - but...
My "gut" feeling is based on what I know about the players in the hand, what I know about how they play, what THEY know about how I play, what I've learned about adding elements of how the hand has played out so that the "story" of the hand makes sense to me, what kind of range I'm able to put the other players on, etc. etc.
So yeah, I listen to my "gut" but my "gut" generally gets its information from my brain.
I sometimes call on a gut feeling. Also I find myself talking out loud about the outs that I need to improve my hand. Whenever I need a 2 or 7 for a straight it almost always seems to hit when I talk out loud about it.