I'm very sorry she is declining further. You may be correct about fatty liver, since the yellowing of the comb. A warming cushion sounds very nice. I wish I had better answers for you. If you happen to lose her and want a more definitive answer, refrigerate her body and send it to your state lab for necropsy/testing. Some of us perform our own informal investigation, looking into the abdomen and at internal organs. If that is something you wish to do, you can post photos here on your thread or on the necropsy thread. I understand, it sounds morbid, but actually seeing what was going on inside is an educational experience, but not for everyone.