I don't stutter when I'm talking to myself, or when I read out loud alone in my room. However, the tricky part is, I *do* stutter when I'm sending voice message to someone, or searching something on Google by voice, even when I'm isolated completely. Just the fact that my voice is hearable makes me stutter. But also I'm pretty sure I didn't develop my stutter from social anxiety. I have been stuttering forever. 3 of my brothers also stutters.