Ashley: your default is probably still turned on to Email by Default. You can correct this by:
1. Clicking on "User CP" at the top of this page
2. Click on Edit Options
3. Find "Email by Default" in the list of options and click "NO"
This happened to me too on the first day, but an unfortunate side effect meant that the first few posts I responded to kept sending me emails whenever someone else posted a response. I just had to wait these out.
Now I only get emails if I click on email notification in a post I want to see responses to.
Let me know if this worked for ya! If you have any problems, post 'em here!