One of the more memorable things I have of Charlie was how affectionate he was towards the end if his life. I remember being very surprised (pleasantly surprised at that!) how he would come up to my face and literally smother me with affection when I was in bed. The curious thing was this was several weeks before he showed any symptoms of being sick whatsoever. It's as if he knew his days were numbered long before I did and he was trying very hard to connect with me in the only way he knew how. So if your cat is behaving unusually, please take them to the vet and get them checked out, they could be trying to tell you that they're not feeling well.