It's not you. WordPress has made a change, and now the default is for comments to be emailed to us.
One way around it is to go to your Dashboard, then home, then "Blogs/Follow". You'll see "sites" "comments" and "settings". You can unsubscribe to comments there. My experience is that you'll have to do that from time to time.
Also, when you leave a comment, be sure to uncheck the box that says "Oh, yeh! I really, really want every comment in the world to come straight to my inbox!" (Or whatever it says...)