Now, this might be a little hard to believe. With no proof. But the fact is most trash container abandoned babies usually still have their umbilical cords attached and more often than not suffer from hypothermia, pretty much always needing to be hospitalized for some time. As for Iah and Jhrea's case, not only were they in perfect health -for they were, after all, still resting in their peculiar womb-, but also conspicuously appeared to never have had any umbilical cord attached to their abdomen in the first place, as they didn't have the slightless hint of a navel.
No birthing scars had Iah and Jhrea. This would appear to be an inconvinience from the start, as navels serve as a way of telling identical twins apart in the absence of identifiable marks. Which was the case of these navel-less girls. Although they were no twins, for they weren't really sisters to begin with. But as they were, after all, born from the same pile of waste, their resemblance was unmistakably uncanny. Much so being them newborns.
Life circumstances and distinguishing difficulties caused them to be separated. And separated they grew up beautifully. Separated, but equally clumsy.
Terribly clumsy. As clumsy as only Gods on Earth can be. Gods, you see, have no navels. They're born only from the divine, with no nutrient tube whatsoever. And so, having no center marked in their physical bodies, they can't get a firm enough grip to the ground. And so they tend to fly off a bit, along with their minds.
In her early twenties, Jhrea gave in to social pressure and had an umbilicus surgically carved right in her exact center of gravity, thus making it fairly impossible for Iah to recognize Jhrea as her other half. Making it up to herself to either see in Iah the part that had been always missing from her, or to completely turn her back on who she was, what she wanted and needed. Conceal her birthing lack of belly button was all she needed to do.
As if.