I have this bad habit - when I'm really stressed, I start repeating words in sentences, or small chunks of the sentences, several times before I can move onto the next bit, and it really slows things down especially if I need to say several sentences, and when it gets really bad I just repeat one word over and over again (and pace around or stand next to a wall) - I know it must annoy people so I can often switch to "sorry" ("sorry sorry sorry sorry sorry sorry").
I have to do it for a while until I feel calmer. Sometimes it's repeated or repeated collections of swearwords - often the only word that overpowers the other words is a swearword, and sometimes I can stop the stream by swearing, but as often as not it just goes into "fuckfuckfuckfuckbollocksarsefuckfuckfuckfuck" - it can be really inappropriate and I try not to but I think it's a stress reaction.
Does anyone have any experience with stopping this kind of habit/behaviour? I'm finding it embarrassing.