Q. My chihuahua is 7years old and keeps swallowing hard and wont eat or drink but his gums are still pink
DAVID ELBEZE, DVM, MRCVS
A. the hard swallowing might be a sign of nausea, which would explain why he isn't eating or drinking. There could be many reasons for these symptoms, for example a gastrointestinal infection, a foreign body in the stomach, a tumor in the intestines. Those are just the most common ones but there are many more conditions that could fit this picture. I recommend bringing him to the if it's been more than a couple days.