Same thing happens to me, I think that is why I have kind of developed a bit of social anxiety because I know that every time I meet someone new I cant introduce myself without having a block. Sometimes people ask me did you forget your name? Or Why did you doubted your name? And Im like 🤦🏽‍♀️🤦🏽‍♀️ Then I have to tell them I stutter and they apologize but I know its not their fault not knowing about my stutter. I found out that I have more blocks when I already know that someone will ask my name than when it is spontaneous.