Behaviour desorder. Disease is this?

My wife is 42 yrs old and having problem with her behaviour. She doesn't understand what is right and what is wrong. She keeps the food open even if lizards are in home. She keeps remaining food for 3-4 days in fridge. Keeps remaining aata in fridge for 15-20 hrs. Don't know the exact quantity of salt or sugar to add in food or tea. Get irritated & angry easily. Doesn't takes the medicine on time and doesn't follow the instructions given by doctors. Doesn't takes care of herself and others. Forgets important works. Unable to focus, concentrate, and understand things easily. Having problem in sleep also. She gets irritated if someone touches the  broom or dirty cloth or cleaning the house. Which disease is this ? Please guide. Is it curable by homeopathic medicine. ?