Stutter might not be about anxiety

Stutter might not be about anxiety Hey! I have a really strange stutter. I talk fine then randomly at the beginning or middle of a word I just start repeating a syllable so much I can’t finish the sentence. The funny thing is this happens to EVERY conversation, not just stressful ones. I also have no other family member who stutters. I had an extremely abusive childhood, so that could contribute to it, but I don’t feel my stutter matches most peoples’. I am a college student and astrophysics lab leader and do a ton of public speaking and I’m acually better when doing public speaking. Any ideas?