I didn't stutter at all until I was about 10 years old. I had a lisp when I was under 5 years old but I didn't had other problems with my speech. Now I'm 35 years old and my stuttering is sometimes very bad and sometimes almost non existing. Two of my 5 siblings had also stuttered but now they stutter only ocassionally. My dad has told that when he was a kid he stuttered very badly (sorry if there's a typos, English isn't my mother language)