Q. My cat is losing weight and he seems to not gain any of it back. He's killed mice and he's now throwing up and coughing all the time as well. Worms?
A. Intestinal parasites are a possibility. An exam by your vet is recommended. Blood work (CBC, chemistry panel, urinalysis) and xrays may provide more information or a diagnosis. Submit a stool sample to rule out parasites. Withhold food for 12-24 hours. Allow small amounts of water or unflavored PediaLyte. Resume feeding a bland diet ( boiled boneless / skinless chicken and plain white rice) in small, frequent amounts. If the vomiting stops, transition slowly to the regular diet. If not, see your veterinarian.