Most Helpful Girl
Sounds like it. Go to your settings and then to security. You can check you're logged in and the recognised devices as well. I once got an email telling me that someone tried logging into my account from Japan, and it asked me if that was me. You can also check your activity log and it will tell you what you've done on Facebook, including the searches and if you've deleted your pictures.
Most Helpful Guy
I would find out how to contact Facebook Admin for advice.