my dog sassy is almost 12 years old and was just diagnosed with congestive heart failure. she refuses to eat her dog food "Ia ms" for small toy dogs. she is pecans and yorkie and weighs 15 pounds. ive been feeding her carrots, green peppers and cheese because they are good for a dog as well as a person and she will actually eat them. i don't know what else i can feed her that wont increase her chance of dieing from the heart failure, but will increase her health. she also has problems with her lungs and liver and has arthritis. also what kind of exersize should i be making sure she gets? is there something that will really help her and make her live through the heart failure longer? plz tell me everything u know i love sassy so much and i want to do everything i can to help her live longer, healthier, and happier.