I notice that for me, it snowballs, too. When I start out my work day stuttering, it just seems to get worse and worse as the day goes on, even if I try my hardest to calm down and speak slowly. Being distracted on days you're having trouble isn't a bad thing. If you have to continue to speak to people, I always find that really deep breathing helps. It's not a miracle cure, but just breathing does lower your anxiety and lower your nerves/pulse. It's something I wrote off for a long time, but it really does help. Avoiding social interactions for a while does help me, too. Sometimes that isn't possible, but when it is possible, it feels good to not have to speak for a while. I don't think that's a bad thing. Having time alone to recharge and not speak for a while certainly helps my anxiety, which in turn helps my stutter.