I can tell when my wife is unwell - she listens to me. When I told her to leave the hoover (ie not to put it back in the cupboard) she listened to me and left it.
She is getting better... slowly. She is lying on the sofa sleeping at the moment - she's been drinking tea and water, chewing gum and eating food (toast / fried eggs and beans). She is also talking (not in her sleep).