My iPhone XR called me! Omg

Well I’m hoping this is a bug and Apple has fixed it since yesterday. I’m sorta creeped out by it but my phone rang as it sits stationary on the table. I walked over looked at the caller ID and **** fire I’m calling myself. I actually picked it up and said hello, as if I was going to talk to me. The other end just did one of those hang ups seconds into me answering it.

My Paranoia has been growing as to why, does some have my information from inside my phone, was is just a bug on the apple system. IDK, but I’m very curious to know if anyone has info on this odd iPhone Occurrence please enlighten me and tell me if my information safe.