Stuttering is a result of mucus accumulation on the throat/vocal cords. Do you feel any mucus in your throat? Try doing a 1-3 day lemon/ginger water fast and tell me how your voice feels. Also, look up some work with Arnold Ehret, he cured a man's stutter by putting him on an 18-day grape fast. He spit up an entire glob of mucus and after that day he never had stutter again.