I just updated my Word Count on the Nano website and am, officially, at 3425 words. Or, in other words, a prologue and two chapters or in the middle of page 13.
So far, it doesn't feel like I'm unduly writing a ton more. I feel like I'm writing faster, though, taking more time to actually write--and not distracting myself by being on Facebook and calling it "writing."
The Inner Editor is still not vanquished, I'm afraid. She wants to go back and add more to scenes I wrote yesterday. I'm being strong and telling her no.