I've only had that happen with my speech, as in, though I feel no danger, I suddenly can't talk. I try, and I can open my mouth a little, but I can't make sounds come out. I know now that while I was fine, one of my others wasn't. They were in distress over something I said or was going to say.
Once I threw something in the trash I intended to keep. I was doing something else and my hand picked it up and dumped it right in the can. I had been arguing with an other about it.