You know what it feels like to be stupid? It feels like you are really smart! I feels like you already know all you need to know, about, say, vaccinations, or about hot to parent somebody else's children.
I'm currently a student teacher, and I'm really struggling to get this point across to my students. I'm asking them questions which make them really think, and since no other teacher has done that to them before, they feel really stupid. But they are not being stupid. If they were being stupid, they'd feel like they had it all figured out.
So yeah, there is this emotion, commonly but unfortunately called "feeling stupid", which you feel when you are trying to figure something out. What would be a good name for that emotion???