Why is my dog so skinny, shaky, scared, and flinches when sleeping?

There are many things that could make Lucy skinny all of a sudden. Intestinal worms, kidney disease, neoplasia or inadequate calories are all potential causes. I would recommend to take Lucy into the vet for a fecal exam and some bloodwork. The fact that she doesn't want to eat could be an indicator that she does not feel good. Best to get her in quickly as diseases are easier to treat early. I hope this helps!

Poor Lucky! It does sound like he's feeling pretty uncomfortable or may be in some pain. It's good that you have a vet appointment scheduled for him already. I would keep an eye on him and make sure he has a place he can rest and relax without being bothered, along with access to food and water. If he shows any obvious signs of illness (vomiting, limping, unable to stand or go potty on his own, diarrhea, tender abdomen, specific pain, etc) or he worsens before your appointment, getting him into an ER vet sooner would be best.

You should have Lucky examined by a vet. Any abnormal behavior should be taken seriously. Since I can't see what he is doing it is hard to comment on why he is doing this behavior. It could be a type of seizure activity. It is best for him to be checked out by your vet in person.

The slurping noise could simply be from eating a food with more moisture instead of having to crunch the dry kibbles. Trembling can be caused by so many things. To name just a few: pain, anxiety, muscle problems, neurologic problems, toxic exposure. If he is steadily losing weight but eating well, I would feed him more! If he doesn't gain weight in 1-2 weeks, he should be evaluated by a veterinarian. Also, you can use an OTC pet dewormer and see if that helps. If Tobias develops vomiting, diarrhea, or does not show a great appetite, I would recommend that he see a vet as soon as possible. Potential causes for this include dietary intolerance, dietary indiscretion, food allergy, intestinal parasites, GI blockage, gastroenteritis, bacterial or viral infection, IBD, pancreatitis, among others.

I would recommend a really good deworming since he is young. However it would be best to take a fecal to the vet to determine if he has parasites and if so what kind. If he does not have any parasites I would recommend a food change. I would try a basic diet like purina, royal canine, or science diet puppy food.

I am sorry to hear about Marley! I would recommend an examination by a vet to see if his weight is healthy. While "chubby" chihuahuas may be cute, it is not healthy for a dog to be overweight. Often we are so used to seeing overweight pets a pet of a healthy weight looks too thin to us. You can use these images to try to evaluate your pet's body condition: https://www.purina.co.uk/dogs/health-and-nutrition/exercise-and-weight-management/dog-body-condition-tool If your dog is truly underweight, then the vet can discuss tests to check for medical causes for his low appetite or weight issue.

Hello. I am very suspicious that there may be something going on with Lucky. A young Spitz should be full of energy & bouncing off the walls. I really believe that your vet needs to look a little more to see what might be going on. Was any blood work or a urinalysis performed at the last visit? Was any other testing offered such as for tick disease or any other diseases that might be common to your area? Lethargy & shivering are a true indication that Lucky does not feel well. I am sure with a little more work by your vet, we can get Lucky feeling better soon. Good luck & thanks for using Petco Pet Education Center, formerly Petcoach.