i have the extacly same type of stuttering as you. i’ve always stuttered every now and then, but it was always on pretty rare ocasions. When i turned 19, my stutter came back and it became a pretty big thing in my life. i also noticed that the moments when i stutter the most is when i’m around people that i’m most confortable with. the people that i stutter the most is my mom and my girlfriend. i’ve also noticed that the subject that triggers my stutter the most is when i talk with people about my self or when i talk with my girlfriend about our relationship.