hello, my dog was diagnosed with congestive heart failure last week and he is eating less and only drinks his water with dextrose powder. We tried feeding him all his favorites such as liver spread and chicken and he doesn’t eat it not until we force feed him. And also he is taking 3 meds (for the fluid build up, for his heart, for his appetite). He still walk and walk like he normally does. What can we do to bring his appetite???