My mother - who is of relatively 'sound' mind, has started skipping meals and hiding what she is not eating - putting food in the waste can, down the disposal, etc... She 'took to bed' for three days - not eating anything. When 'threatened' with a hospital visit - she came to the dinner table and ate reasonably well, Boost before bedtime as well. Next day - right back to same 'tricks' - not eating, languishing in bed.... Part of this is a bid for attention - I'm sure - but her weight and nutritional status worries me. Ideas?
I've found with my mom and other elders in my life that a sudden change in status usually signals a physical problem that the elder can't analyze or explain.
I wouldn't threaten a trip to the ER or doctor. I'd simply write down what you are observing and get her there. Something is up; sore tummy, swallow problem, GERD. Something that should and probably can be addressed.
My father was ready to meet his maker. His stomach also gave him problems. He did better with light foods, such as fish sticks, instead of fish. He liked snack foods and finger foods. Heavy meats ended up in doggie bags stashed under the chair. :) I remember finding the final bag a few days after he died. I knew he hadn't eaten that fish, but it took me forever to find it.
The doctors at the hospital found that his stomach was inflamed. It is easy to understand why he didn't want heavy food.