When first I saw this, I reported that your account had been hacked. FB must've taken it from there, and deleted the posts. There were 3 or 4 of them.
If I were you, I would change passwords. There is also a security feature on FB that, if you enable it, will send you notifications if anyone logs into your account on an unfamiliar device. It will give the time, device, and approximate location. It will then ask, "Was this you?" If it wasn't, you can block the device.