I pace when under stress, bigtime. I also talk to myself and think out loud a lot. My husband gets annoyed because I think out loud around him and hell respond to me and I'll say something like "I know, I wasn't even talking to you, I was just thinking out loud" and then he gets upset and says "when people think out loud it's called talking, and if you do it when you're around someone else then of COURSE they'll assume you're talking to them" to which I reply "we've been together for 24 years, you should know by now that doesn't apply to me".
My mom was fully NT and used to joke that when she wanted an intelligent conversation she often resorted to just talking to herself. I liked that explanation and sometimes use it.
I also get stuck in endless loops inside my head. Like, in the shower I always say my prayers and they're scripted and I say htem the same every day, which means I go into a sort of auto-pilot when doing so, and don't pay full attention to it, so sometimes I will suddenly "come to" almost and hear myself saying the same exact phrase for like the fourth time and will realize I got stuck there like a record player skipping and repeating the same phrase, and I will often have to start over completely because once I'm stuck in repeat, I usually cannot mentally figure out what comes next.
Same thing happens with other things, like yesterday I was filling out a deposit slip which I usually do off-handedly, in auto-pilot form, but for some reason I stopped partway through and really LOOKED at it and that caused me to forget the last four digits of my account number and I had to distract myself and start over in order to successfully write it down because once I was stuck and knew it, my brain refused to go any further.
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( Living in Parentheses ) - female aspie, diagnosed at 42 ~
BAP: 132 aloof, 121 rigid, 84 pragmatic // Cambridge Face Memory Test: 62% // AQ: 39