My house is making strange noises... Im creeped out! :S ?

[Im a GLEEK]

So my house has been like haunted or something... my bathroom toilet flushed twice by itself... my brothers door opened back up the second after I closed it... I was doing laundry and I heard a bang... turned around and nothing was there... now I keep hearing footsteps :S

LOL My parents and sibligns have been asleep for 4 hours! so I dont know who it could be... my dog is with me so its not him :S