The cardiologist came, and there is no indication of any heart problems, praise God! They are waiting on results from a thyroid test, and are waiting for the gastroenterologist to come. Whatever happens, she will be in the hospital at least one more night.
Thank you all for your prayers and kind thoughts as my family goes through this scary time.
Mom was kept in the hospital overnight and is waiting to be seen by a cardiologist and a gastroenterologist. The worst of her pain has subsided, but they still don't know what caused it. They ran tons of tests on her, but everything came back normal. I suppose that's a good thing, it rules out all the "biggies" but doesn't help us to figure out what to do to make her better.
I'll keep you all updated as I get more information.