Are we speaking the same language, here???

This morning when I was bending down to help Noah button up his shirt, I lost my footing a little bit and said, "Whoa!" We had the following dialogue.
Noah: You okay, Mommy?
Jeana: Yeah, I'm fine.
Noah: What happened?
Jeana: I tripped.
Noah: What?
Jeana: I tripped.
Noah: What?
Jeana: I tripped.
Noah: What? What are you saying?
Jeana: I fell down.
Noah: Oh. Are you okay?