Brain fog, speaking problems

Does it happen to anyone else, sometimes I get brain fog like right now and have trouble speaking properly. I forget words, I forget how to speak English (I’m French but perfectly bilingual), I try to talk or have words in my head but can’t seem to get them out like they don’t travel to my mouth, forget what I was going to say or when I speak, I mispronounce words. Even my own name lol. It gets embarrassing, trying to speak to my colleagues or customers. I can’t seem to see a correlation with my dosage but maybe it does