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What could be some reasons for very sudden and drastic mood changes in a cat? I have a neutered male 10 month old cat who is experiencing sudden changes in mood as well as bouts of lethargy. One day he will be very lethargic and only eats a little bit, but the next day he is hyperactive and wants to eat everything in sight. As far as his moods go he will be very nice one and with the snap of your fingers he is trying to tear your eyes out. I would say overall this started a week to 2 weeks ago. He is also fighting with my other cat and my dog which he never used to do and my dog is a whole 100 pounds bigger than he is. Today I was petting him and he bit me extremely hard and now I have two very deep punctures on my hand. This is not like him at all. Are there any medical reasons that could cause this? Should I take him to see his veterinarian for this issue?
If he's ten months, he could just be growing out of being a kitten.
Have there been any changes in your household? I mean, like changes in the environment, air fresheners, moving things around, redecorating, etc. Cats aren't fond of change, especially with no warning.
Has he gotten outside recently? Is there anything that you can think of that might seem out of the ordinary?
I agree with Jessica Eberhardt. Change is very bad for cats.
On another note, make sure you take care of those puncture bite wounds! Cat bites have a tendency to get extremely infected, very quickly. I've seen a tech just about lose her hand because she didn't think the bite warranted a doctor visit.
He hasn't gotten outside but he used to spend much of his time on our enclosed porch when the weather was nice, but now that it is so cold and the heater we had out there broke we have closed that room off to the animals. I suppose that could be upsetting him. It has only been closed off for about 4 days now. His "abnormal" behavior started about 2 weeks ago, but I have noticed the last few days since closing off that room he has gotten worse. thanks for your response
I had a similar problem when it was nice out. I know it sounds silly, but I'd take my cat outside on a leash so he could relax in the grass. He loved it. But then when it got cold, he flipped out because he couldn't go outside anymore. He'd get clingy and wouldn't for the life of me leave me alone. He can be clingy to begin with, but this was different.
Plus, some cats just get weird as the seasons change. I know mine does. The weather sometimes affects us, so why wouldn't it affect them as well?
I agree with the statements above. If he goes outside at all there is a possibility that he could have come across rabies. Have you had him vaccinated against rabies? I am new to the field so I don't know any real medical advice. Just from what I have heard from others, rabies can cause sudden change in moods.
Yes, environmental changes for cats...NOT good. Also check outside, make sure there is not another cat or animal that has taken up home outside your house. I had a client with the same presenting issue in her cat, also a neutered male, I'm not sure how old he was, but it turned out there was a colony of stray cats outside in her back yard and it was causing her male cat to stress out. We ended up recommending she call animal control to get the colony from her back yard, they were all feral and very fearful of humans, and we also gave her a Feliway diffuser to use until the situation was controlled better. I wish you the best of luck.