Why is my new cat vomiting, having diarrhea, and bloody stool?

The blood you are seeing in the stools may be stress colitis. I suggest you do the following: 1. Put her on a GI supplement for diarrhea that also has probiotics: https://worldtails.securevetsource.com/itemView/view/198944_HomeDelivery.pml?productId=132480 2. Put her on a GI food that will help with digestion: https://worldtails.securevetsource.com/itemView/view/198944_HomeDelivery.pml?productId=114749 3. Use some Feliway diffusers in your new place until she seems more comfortable. These really help with stress: https://worldtails.securevetsource.com/itemView/view/198944_HomeDelivery.pml?productId=117324 This is what I would start with. Hope this helps. Best wishes!

Poor Sebastian! While this vomiting could be caused by his food, if he's been on it a while, then it's more likely caused by something else. Vomiting and blood in the stool can be caused by a severe GI illness, a foreign body, severe intestinal parasite infection, GI ulcers, or exposure to toxins. Because blood in the stool is not normal and can be caused by serious illness, it would be best that he is taken into a vet now for an exam. The vet can diagnose what is causing the vomiting and bloody stool, and can treat him for it.

Given that he has been on the streets, he likely has intestinal worms, and will need a deworming treatment. I would have him seen by a vet first thing tomorrow for a physical exam, blood tests, and urinalysis. It may also be advisable to test him for FIV and FeLV since he's been out on the streets. The vaccines he needs includes FVRCP and rabies. He will also need flea treatments and heartworm treatment, and he should be tested for heartworms before getting the heartworm treatment.

It's not uncommon to see vomiting/diarrhea from a cat from a shelter. Pogba could have a mild G.I. infection was something like G.I. parasites or a bacteria. It also could be due to recent diet change. The sneezing could also indicate a mild upper respiratory tract infection. If any of those signs continue I recommend Pogba get looked at by a veterinarian to make sure nothing more serious is going on and that no medication as needed. However if Pogba stays bright and alert, is eating and drinking and the diarrhea resolves as well as the vomiting it should be OK to monitor him at home.

I'm sorry to hear that Casper has had so much diarrhea lately! Yes, it is certainly possible that the stress of his visitor coupled with his ingestion of the other cat's food and treats could have caused some gastroenteritis (inflammation in the gastrointestinal tract), which led to diarrhea. A bit of blood can occur in the stool as a result of irritation to the colon. If Casper is still eating, drinking and acting relatively normally, you can try a home remedy. Start by withholding food for 24 hours, then offer a bland diet of boiled white meat chicken for a few days before gradually mixing his normal food with the boiled chicken over another 5-7 days. If at any point Casper becomes lethargic, starts vomiting, has profuse bloody diarrhea, or stops eating, he will need to take a trip to the vet for further evaluation. I hope this helps and that all goes well!

Poor Milo. This diarrhea could be caused by dietary indiscretion, a stomach illness, eating something rotten, or a foreign body among other causes. The concern here is blood in his stool. You can feed him his canned food, but I strongly recommend you take him into a vet now to get this treated. The vet can diagnose what is causing his bloody diarrhea and can treat him. Please take him into a vet immediately. Best of luck.

If you're not happy with how the first vet took care of things, and Ojitos is still vomiting and having diarrhea I would most definitely seek out another veterinarian for care. It could be that there is an underlying viral or bacterial illness like you suspect, and he may need hospitalization or subcutaneous fluids as well as injections to help with the vomiting in addition to any other medications to treat the underlying issue. You can try to offer a bland diet of some boiled chicken and rice, or even some low-sodium chicken broth to try and keep him hydrated/eating/drinking, however if this is continuing or he is acting very ill it is best to seek out veterinary care ASAP.