Small Moments

Lately, I've been experiencing a lot of these small moments where I'll be talking to my host-mom or sitting in class and everything is going along smoothly... then it hits me: Holy crap. They're speaking Spanish. And I'm speaking Spanish! This is another language that is not English and I understand it. How did this happen? Don't I speak English? Spanish? What? ¿Qué?

Then I snap out of it and realize the conversation has moved on and I no longer understand what we're talking about anymore. I don't know whether or not to take this as a good sign...