Why is my cat grumpy and moody all day? Should I be concerned?

Since it sounds like this is a recent behavior change for Zora, I would be very suspicious that she may have an underlying medical problem causing her aggressive behavior. There are a number of common problems in older cats that can cause behavior changes like this, including hyperthyroidism, chronic kidney disease, or even pain from arthritis. I would recommend taking Zora to the vet for an exam when you are able to - he/she can do blood work if needed to check for these issues. If a problem is found, it's likely that it can be treated with medication to make her more comfortable and hopefully improve her mood as well :)

Hi, thanks for using Petco Pet Education Center, formerly Petcoach! Cats are finicky creatures. If Kekr is eating, jumping around like a young cat should and not vomiting then I don't think you should worry. Most cats really only like to be scratched around the head, unless you find the rare "dog" like cat that like belly and back scratches. Just like people cats come in a variety of personalities. I recommend leaving her be when she has these moments of being grumpy. I hope this helps!

It may be her personality. Some cats are more solitary than others. If she had rpeviously been more social, have her examined by your veterinarian to diagnose illness or injury. Either can cause sudden behavioral changes. Monitor for signs of bulllying or aggression by the other cats as well.

There can be many causes for the sudden change in activity level, including unhappiness with the new food flavor, pain from arthritis or another source of pain, GI upset from food allergy or dietary intolerance, anemia, constipation, infection, among many others. I would keep a close eye on his food and water intake, and monitor his bowel movements and urinations. If he is not back to himself in 48 hours, or if additional symptoms develop, he should see a vet for and exam and appropriate diagnostics.

It is very normal for cats to adjust their behavior over time as they get used to things and people that once scared them, especially if your cat is exposed to it often over time through family or friends. However, if the behavioral change is sudden, you are concerned, or there any health symptoms showing up, a vet visit to rule out any issues is always best.

If he will allow, check in and around his mouth for signs of infection or injury. This may include redness, swelling, bruising, bleeding or discharge. Make sure he has plenty of fresh water available at all times and review his diet to confirm adequate nutrition. A pheromone product, such as Feliway spray or plug in diffuser, may decrease any anxiety. If the behavior persists or worsens, have him physically examined by your veterinarian. If it is behavioral, a combination of medication and behavioral modification may help. If there is a medical cause, your vet can diagnose and treat it.

It could be Jenna isn't feeling well, and that is making her grumpy. A sudden change in attitude including hiding and aggression can be a sign of a medical illness. I'd take her into the vet first thing in the morning to get checked out. Best of luck.