用 slippery elm bark powder 兑温水，变 gruel,

给他吃吃看，不吃的话用针管（拔掉针头）打点进嘴巴。对便秘拉稀都有益。关于肾病，找 facebook feline chronic kidney disease group, join them, you will learn a ton from cat parents whose kitties all suffer from CKD. There are also a feline lower urinary tract group and a feline nutrition group, very knowledgable cat parents who can help to answer questions. Good luck!