Was the Scarlet Witch a Real Kid?

It seemed at the end of the show that her kids were real kids, that had she'd given powers too. But when she's pulling apart the heck and they're falling apart, what's going on there? I was kind of unclear if they were created or they were real kids,. And maybe that's the point, as we're not sposen, know? Cause she hears the scream in the post credit scene at theend of her kid... Did you make it? Tav her? What was the post credit scream? Postcredit scene is her a, we're not sure where she is, but she's in the wilderness somewhere. The place is al the other post credet sen