I'm not sure what exactly causes that, but I'll share what I've interpreted from my personal experiences :) . I stutter more often during moments when the quality of my thoughts is less. In these moments, I find that my brain nonstop spurts out really negative, pessimistic, self defeating messages. Like as if there’s a little bully in my head that labels and shames me for having a stutter, social anxiety, depression, etc. This little bullying voice is more prone to coming out when i’m tired, hungry, stressed, anxious, or have had difficult/awk encounters. Sometimes it even comes out when I'm over excited (although i don't realize in the moment it's just over excitement). I stutter less on days when I’m well rested, well fed (esp more nutritious meals- also w/ less sugar, less caffeine), have had some or even 1 positive interaction (it can be as simple as saying thank you to a friendly barista or even sitting in a cafe around people - it helps me more than isolating myself for an entire day :D), and a big one- when I've worked out/done some physical activity (to burn away that extra tension). Something that has helped me recover is gently reminding myself that recovery is a process, it's not linear and it looks different for everyone. There will no doubt be bad days where we find ourselves stuttering and feeling so very defeated. Sometimes I get so swallowed up in the negativity, that I start carrying a mental label of ‘being a stutterer’ with me and I allow it to influence every interaction that follows. Were not required to stay in these low moods (check out ‘thought stopping’), were sure as hell not defined by our stutter, and were not obligated to be the same person we were 5 min ago. Maintain that sexy growth mentality y'all have within you and remember that every encounter is a new one ;)