My grandmother hasn't been diagnosed yet and we are going through the process now. She's 84 years old and has a cat that she has become somewhat obsessed with she lives by herself 3/4 days out too the week and my uncle travels from Wales weekly to stay with her 3/4 nights a week. She over feeds the cat some wicked and has actually become a problem now. She also gets into a frenzy when the cat goes out and talks of people stealing him. She will often go from the front door to the back door simultaneously shouting at the top of her voice for her cat and will do it over and over and over for now the cat overeating is the biggest issue as he has been sick due to eating too much. She doesn't remember when he's been fed and doesn't take well to cat food not being there (hidden) she's nearly fully blind also which plays a big part in it too any advice? Thanks