I think the same thing. It has to be confidence and some breathing. I don't remember stuttering before high-school and I can't really remember if I stuttered in the first few years of high-school or not but I started to get fatter and fatter and get judged more and bullied a little. My family has had a lot of issues with my siblings, police getting involved and child services too, due to my sisters being two psychos. In my late years of high-school, I started getting panic attacks, followed by a lot of absences and then the paroxysmal non-epileptic seizures. I believe I had the stutter before the panic attacks but I think it's linked. My speech therapist was useless imo and the child services were also useless and actually caused more stress and harm than good. I haven't had a panic attack or seizure in around 5 years or so and the seizures only lasted around 8 months too, which is strange. It has to be a psychological issue, right? I reckon if I get fit, see a good therapist or become very comfortable with my life, the stutters will stop. There is bound to be a solution to it if its psychological. Or even to be hypnotised. I'm not a firm believer in it but it's got to he worth a shot, right?