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I am so sorry that you are worried about Paris, and that you have waited so long for an answer. I am Rebecca, a veterinarian, and will do my best to help.
I have been trying to answer your question since early this morning! There was some website problem, beyond my control, that kept me from helping you that has just now been fixed.
Usually (amazingly enough) pieces of glass do pass. How is she doing?
Black stool can indicate bleeding in the intestines. Has that continued?
Let me know how she is doing and if you still need help with her. I am sorry that some website bug prevented my helping you sooner. Rebecca