we took him in about six months ago, vaccinated and twice dewormed. at first he used to finish his meals fast but now he has decreased his food intake so much that he appears underweight. ribs and spine are not yet visible from a distance but his hip bone and spine could be easily felt. he is as playful and active as he was before but he is eating much less. vet prescribed liver stimulant/tonic and practin tablet.. hasn't made much of a difference. he liked getting yummy stuff like egg boiled fish etc to be mixed with his food otherwise he won't finish his meal. but now even doing that has little effect. will this pass or should i be worried ? he is not fed any branded pet food (i'm too poor for that) his meal comprises of rice and chicken mostly sometimes pumpkin, egg, boiled de boned fish. i've given him ice cream, milk, yogurt sometimes but that caused either soft or runny stool. he is a big fan of biscuits .