Wow, thank you! This is really validating for such an odd experience. That happened (and still does) with my second language, absorbed mostly through immersion

Wow, thank you! This is really validating for such an odd experience. That happened (and still does) with my second language, absorbed mostly through immersion/native exposure on a day-to-day basis. When I go into that language mode and am having a conversation, my brain can pick a word and speak it, and I have no idea where I learned it, or even if it was correct? It will immediately sound strange and "unknown" to me. I would struggle to define the word, and if it was spoken to me I probably wouldn't understand it. It just felt correct to fit it there in the conversation. Then I google translate it and find out "huh, yeah, that was actually correct and completely appropriate in that context". It's so strange.