I don’t think it’s actually stuttering I believe that because you’ve learned it recently and you have the background fear of stuttering it happened. Raise your self confidence and Never feel discouraged,disappointed and embarrassed while you talk and when stuttering comes continue to talk.you have nothing disturbing ,live your life without any stress ,talk without any fear .Don’t let stuttering decrease your outgoing character,communicate with others with self confidence and never ever feel down or discouraged