How did my psycho ex found my profile on Facebook ?

[Fifo]

Guys! I am so shocked, how is it even possible ? Lets say my name is Amanda. So I put my first name as Amanda and last name I put three ranfom letters like Rfg. We dont have any friends in common, so no one could tell him my name on Facebook and he doesnt know my email. So how did he know ? I even changed cities because he is a complete psycho. Did he search for me just put in search name amanda but i guess there are thousands of amanda on facebook, so he recognized me by pic ??
Please help how do I secure my profile from him and his messages and multiple profiles

[Eric]

Try to google your name. You'd be surprise what pops up!

[Christ]

Just block him...!!

[Georgiaboy17]

You will need to block him. Log into Facebook and go to your privacy settings. At the bottom you will see an option that reads Manage Blocking. Click it. At the top of the next page, you can enter their name or E-mail address. Hope this helps!

[katniss styles]

1- block him
2- make your acount private
3- change your name ie your name is elizabeth walker to lizzy booboo or cupcakes on facebook and dont put your face as your profile picture.
if hes really harrasing you report it to the police
good luck