My dad has it. Only I got it among my siblings. It got worse in a scary strict abusive environment at home while growing up. The anxiety and fear made it worse for me during school days. Nobody wanted to be my friend. I was the only one who stuttered during all my school years. As an adult now, I have to work extra hard before any presentation. If I don’t prepare beforehand, I just stutter a lot. It’s bad! I hate it. Sometimes my jaw get locked on a word I am trying hard to get out. It only happens in situation when I am very scared, anxious, nervous and very conscious of myself. When I am relaxed and comforted around good people, I don’t stutter at all and nobody can even tell that I stutter in life.