In my situation, it's when I don't stutter for days at a time. Mostly it's because I'm mostly home and don't interact with people IRL much, except for my wife. So around her, I'm usually relaxed and don't stutter much. Then I go out and try to interact with someone random and poopy doopy!...I can't even get half my sentences out. It's like I forgot how bad I can stutter in just a few days of relative isolation. And I have to constantly remind myself how to speak again and start relaxed and speak slower. I can't even be excited about something anymore. . Even now, writing this, I just realized I was holding my breath and increasing my anxiety...which seems to be occurring to me more often.