Awesome idea and well-written, but I didn't really care for the execution. The grotesquerie and body horror was a real turnoff to a fascinating concept for me. There has to be another way to convey terror and horror, especially with such a rich vein to mine. Likewise, I found the direct discussion of the themes - the way the protagonist openly announces about how she has to remember and tell the stories etc. - to be a trifle too straightforward for my taste. I prefer an elliptical approach to theme, personally, and I think this story would more than support such a structure. I feel like it weakened the metaphysical horror to be so blunt, and that's what necessitated the overdose of physical gross-out imagery: a bid to make the ethereally horrific past into a materially horrific present for the reader. For me, I vastly prefer (and am more frightened by) the former compared to the latter, so I didn't get much from the translation of abstract to concrete.
A good story, but stylistically not to my personal liking. I can distantly appreciate it; I just don't have any enthusiasm for it.