My cat stopped eating and is weak after vacation. What's wrong?

Mr. Peabody seems to be experiencing very general symptoms of illness, meaning this could be pretty much any disease. when cats behave this way it's usually because they feel very ill or are painful, and it's usually a sign of a serious condition. i strongly recommend that you take him to the vet in order to get it checked and treated ASAP.

It sound like your cat isn't feeling well. Anorexia (not eating) and lethargy are symptoms of many different illnesses, so without more symptoms, I can't pin down what might be causing her to act this way. I can say that any sudden change in behavior from the normal should be investigated your vet because there might be a medical cause behind it. In this case, I think it would be a good idea for your cat to see a vet, and I recommend taking her into your vet's normal business hours for a health check. Your vet would be best to determine if there is a medical illness, and how best to treat it.

Poor Chico! Lethargy and anorexia can occur with a very wide array of conditions, including FIV, feline leukemia, FIP, pancreatitis, gastrointestinal viruses, etc. When cats stop eating, there is a chance that they can develop hepatic lipidosis (fatty liver disease) as well as becoming dehydrated. Chico sounds quite sick and should be examined by his vet immediately so that any necessary diagnostics and treatments can be started.

These symptoms can be caused by a range of diseases, and are often accompanied by severe dehydration. Without an exam and some testing, I can't make a diagnosis, and it is illegal for us to make specific recommendations on medications. You should call your local vet for further advice.

Hi, thanks for using Petco Pet Education Center, formerly Petcoach! Poor Mr. Fluffy! I am curious on how old Mr. Fluffy is. If he hasn't eaten well while you were gone either because he was scared or because he is suffering from a medical condition he needs to see a Vet. Cats can not go longer than 3-5 days with out eating before getting even sicker from fatty liver disease. I would take Mr. Fluffy to the emergency room today or as soon as your Vet opens Monday to have an exam and blood work ran. Check the whites of his eyes and if the whites look yellow he should go to the emergency room today. I hope this helps and I wish Mr. Fluffy a speedy recovery!

Tiny sounds very sick and I'm quite concerned about him. Without seeing him in person, I cannot narrow down what is going on with him. The best thing to do is take him into a vet immediately. The vet can examine him and possibly do blood tests and a urinalysis to diagnose what is causing his symptoms so he can be treated. I hope this helps!

Hi there and thank you for using Petco Pet Education Center, formerly Petcoach to address your concern. Based on your description, I am quite concerned she may be dehydrated and may have some systemic disease or infection going on. I would have a veterinarian examine her so that the most appropriate diagnostic and treatment recommendations can be made. I hope this helps! Please let me know if you have any further questions / concerns and I would be happy to help further.