I have a 16 year old male ragdoll cat who stays indoors. He has always been a bit precious (we rescued him from previous owners who got a puppy who terrorised him) but recently he's even worse. He is always desperate for affection and despite a healthy appetite always begs for food. Along with that it seems like he has stopped grooming himself so his fur is getting really matted. I've heard that this can happen when they are ill (he has no other symptoms) or when they've just given up a bit.
Does anyone have any experience with this?