Well I stuttered since I was a child.. at 35 it's mostly gone. It mostly stopped when I was 17 (and it probably sounds crazy) but after a potent hit of LSD it diminished by about 70%. I did not do LSD since, and sometimes I still stutter, but I don't wish what I went through to anybody. Not even to my worst enemy. I was mocked throughout my childhood for stuttering. So LSD somehow "healed" me. True story, believe it or not. But then the fucking OCD kicked in, worse than ever.