The fidgeting part makes so sense in the hindsight. Only yesterday I learned about that. When I look back, I could clearly see that whenever I was walking, driving, running, lifting weights, I never stuttered even randomly. I learnt that our motor cortex of brain which controls our limb movement, also controls our mouth, lips, tongues and nearby muscles. I also learned yesterday about costal breathing technique and how, if you can predict a block or an elongation, you can start just that word with a swallow exhale and while exhaling say the phrase and continue speaking and I discovered that works well too. Man, I wish you guys were my friend growing up in school. Life would have been so awesome. Better late than never, I guess. Love reddit for this, as well.