That is so silly :-), she really looks like she is saying she will wait all night for the faucet to start dripping. She really is a beautiful girl. The eating of your chicken sandwich really seemed to me like a good sign. Cats eat when they feel good, so she must have been feeling nice. I looked online for reasons for cats to let their tongue stuck out and the overwhelming response was gingivitis, like your vet suggested. Mary, you and beautiful Puddy are always in my thoughts and prayers. I hope everyday for improvements!