Same story as you , I dont stutter when I talk in comanding voice , in request tone , if I say something that make me happy or when I needed toh say something in anger for eg . reply back to your friend comments on you. So, in generall I dont stutter when I speak with emotions and good intuition involve in it If I anticipate the word or things I have to say or thought of being judge and not able to finish sentence then I stutter , even if dont say a word i can feel the pressure my breath goes faster ,i cant stay calm and negative thought just erase any good intentions , but if just start speak without much thought I stutter less