https://www.fresheggsdaily.com/2015/07/preventing-hardware-disease-heavy-metal.html
This has some similarities.
Hopefully she didn't eat any of the metal bits you saw out there. Looks like suggested treatments are to add vitamin B, do a molasses flush, and take her to a vet if possible. A flush and adding the Vitamin B can't hurt, so you might want to try those things.