It's all in our heads man and I firmly believe that. Our brains control EVERYTHING we do, how we feel emotionally and physically, our breathing, etc... something in our brains switches and decides we're not going to be able to talk sometimes. I wish I knew why. I am NOT advocating this so mods please don't ban me or something I'm just sharing my experiences, but when I do small amounts of certain substances (mushrooms mainly) I don't stutter a single bit. It is AMAZING. Something in my brain chemistry is changed temporarily and I am the most fluent person in the whole world. I can talk 100mph and I actually feel normal. I used these experiences to try and learn what I was doing differently during those times that I could speak like a champ and try to bring that into my life afterwards. Again....I'm not advocating doing drugs, just to make that clear. I stuttered my whole fucking life and school was hell. I had a fantastic day yesterday, barely stuttered at all, it was amazing. Today? Who knows haha we will see eh? Just remember though, you're not alone. I'm almost 32 btw.