Quick, go to your Facebook profile, click "about" and check your contact information. Hey, where did that Facebook email address come from?
It's a new change on users' profiles. Annoyed? Fortunately, the blog Lifehacker taught me how to fix it.
Hit "edit" in the contact info box in your profile's "about" section. Across from the Facebook email address, youll see a circle. Click on it and hit "Hidden from Timeline." Then, go to your primary email, find the circle and hit "Shown on Timeline." Finally, hit "save" at the bottom of the box. Done.