Why is my cat weak, not eating, shaking, and sleeping constantly?

Poor Shaggy is extremely sick, and this is a medical emergency. You need to take him into a vet now for medical treatment, it will be his best and only chance of survival. Please take him into an ER vet or find a vet on call to see him ASAP.

This is a medical emergency, and your cat needs to see a vet now. I'm very concerned he could have gotten into sometime toxic or has a very serious illness. He needs to have veterinary care right away, or I'm afraid this could be fatal. Please take him into a vet immediately.

Poor Pippy! Yes, it certainly sounds like she's sick - shaking is often a sign of pain or discomfort in cats, and not eating or drinking is also a very non-specific sign of illness. Unfortunately, these are very vague symptoms that could be caused by almost anything, so it would be best to have Pippy examined by a vet as soon as you are able to. He/she can do a thorough exam to check for any areas where she might be painful, and can also do blood work and x-rays if needed to help determine the problem.

Poor Boboom sounds very ill! I certainly hope he isn't dying, but without seeing him in person, I can't say for certain. It's extremely serious he won't eat, and when a cat doesn't eat for more than 72 hours, they develop a fatty liver which is fatal without treatment. He really should be with a vet now for intensive treatment, including IV fluids and appetite stimulants in order to have the best chance of survival. Please take him back into one now.

There are a number of things that could cause Newman to stop eating and drinking such as systemic illness, infection, inflammation, or injury. It's actually extremely serious when a cat won't eat, as they will develop a fatty liver if they don't eat going on 72 hours. A fatty liver is fatal without treatment. He needs to see a vet now. Please take him into an ER vet clinic; if there isn't one in your area, there will be a vet on call for emergencies. The information to reach that vet is found on a clinic's answering machine or website.

Please take your kitten to the vet immediately. It sounds like she may be having neurologic symptoms, which could be due to low blood sugar associated with not eating and drinking, and she is very likely dehydrated. This is potentially deadly, and your kitten should be seen right away to check her blood sugar levels, assess for dehydration, and address the cause of her weakness. Another very serious concern in a stray kitten is the possibility of rabies infection, which is transmitted from the saliva of infected mammals, can be passed on to humans, and is fatal. There may also be other underlying neurologic causes for her condition, and a veterinarian can help determine the cause and start treatment .

Poor Lilly sounds extremely ill, and I would have her seen by a vet immediately. When a cat doesn't eat for at least three days, they develop a fatty liver which is fatal without treatment. She could have a number of serious problems wrong with her causing her anorexia, such as kidney failure, liver failure, severe dental problems, or even cancer. I would have her seen by a vet now for a physical exam, geriatric blood panel, and urinalysis to diagnose what may be causing her symptoms. Once a cause is found, the vet can discuss treatment options with you.