Name change with no login and double verify

So I woke up and found no login into my Gmail, but then my Minecraft ign who somehow change to Originating was on, then I realize it my account which somehow changes from Xyncronise to Originating. The email that is linked to it didn't flag any warning and no one has logged into it. I went onto check the ign 2 other people have the same ign and it creeping me out. If any Mod or Mojang staff are readying this, Please help me switch it back to Xyncronise since a few server databases is the only link to that account. THank you