HahaEveryone loved what i said.
(OP, in all seriousness, i hope you figure out whats going on! Was that an egg inside it? Hopefully shes alright, and i would watch her eggs to avoid cracking and eating for a bit, even if their normal. You can always put food dye in her vent if your not able to identify her eggs from the rest. It will be very faint but should work as long as its a bright distinct dye.)

But seriously would like to know what that is!