Cat with discolored nostrils, labored breathing, head shake. Is it serious?

Yes, I would be concerned. It sounds like Rosey could have a respiratory infection. I'd take her into a vet as soon as possible to get checked out, as I'm concerned about her breathing heavily. Rush her into an ER vet if she starts open mouth breathing. If she's congested, you can also try using a humidifier or bringing her into the bathroom with the door closed while you take a hot shower - the steam and humidity help to break up congestion and temporarily relieve symptoms associated with respiratory infections. Best of luck.

My best guess based on what you have described would be that he may have feline asthma or a nasal polyp. I do think you should take him to the vet for an examination. I don't think it's an emergency unless he is really having trouble breathing but try to get him in as soon as you can. Here is a link to an article about asthma a well as polyps in cats. Hope this helps. ( https://www.vet.cornell.edu/departments-centers-and-institutes/cornell-feline-health-center/health-information/feline-health-topics/feline-asthma-what-you-need-know ) ( https://vcahospitals.com/know-your-pet/nasal-polyps-in-cats )

Yes, those are signs of breathing problems. The most common thing would be an upper respiratory infection but it could also be something more serious like feline asthma. I think you need to have him examined by your vet as soon as possible.

She is probably suffering from a chronic upper respiratory infection, you need to take her to the vet to get it checked and treated, a relatively long course of antibiotic will likely be needed to treat this condition.

Thank you for submitting your question regarding Leo. I would recommend that he sees his veterinarian as he may have an upper respiratory tract infection. If this is not the case, then he may be experiencing allergies or even have a diseased tooth. You veterinarian will be able to guide you on if diagnostic tests are necessary or if treatment is needed. I hope this information helps!

Thank you for submitting your question regarding Missy. I recommend that you seek emergency veterinary care this evening. Open mouth breathing is a sign of respiratory distress in a cat. The respiratory infection could have spread to her lungs resulting in pneumonia or she could have another problem. Heart disease and fluid in the chest can also cause this breathing pattern. I hope this information helps. Good luck.

I would be worried about Snuggie. It's very concerning she is having problems breathing, and given that her symptoms have been going on for a couple of days, it's time to see the vet. I'd take her into one now. Best of luck.