I don't care. A few years back I was attending hypnosis therapy to "dive into my blocked memories" and figure out what was that point or know when it started. However, I quickly realized that that knowledge would not change my present. I started to focus on my present and future. At the same time, I have read a book "Stop Doing That Sh\*t" which confirms that I should stop tinkering about the past and learn from it. I discovered that my problems are not due to stuttering. Yeah, it\`s a big blocker but you know what? A lot of my friends have similar problems and they don\`t stutter. However, if you have not stuttered from your birth and you know what was the starter, maybe it\`s a good point to focus on your therapy.