I have. Errors I usually wouldn't make (they're very very rare for me normally), not being able to find the right words, or saying things I don't mean. Vocal outbursts as well (sometimes when I'm getting hypomanic I wonder if I have Tourette or something). And being very unsure of the meaning of words/sentences or whether they make sense at all. I'm not sure if these things are just due to the chaos in my head or the overwhelming thoughts/feelings, fatigue during depressive episodes, or something else.