Little is known about the origin of the Russian Blue breed, though stories are legendary. Many believe the Russian Blue is a natural breed originating from the Archangel Isles in northern Russia, where the long winters developed a cat with a dense, plush coat. Rumors also abound that the Russian Blue breed descended from the cats kept by the Russian Czars. Assuming the Russian Blue did migrate from northern Russia, it was likely via ship to England and northern Europe in the mid 1860s.
Cats can also develop fluid build up in the chest that is localized outside the lungs. This happens in an area named the pleural space. When fluid accumulates in the pleural space, the lungs cannot inflate as much as they should. Your cat will develop shortness of breath and labored breathing as more fluid fills this space. According to VCA Animal Hospitals, some causes of pleural effusion include:
Hi, our 15 year old girl, Buddha has gotten super weak so fast. She had a lump on her nose/lip area, which contributed to a number of doctor visits. They took blood, sample of the tissue, etc, everything came back normal. So the vet told us that if it doesn't bother us, to leave it be. She was still ok at that point just had that lump. Then after our last visit which was very stressful to her to say the least, when she came back home, we noticed that she was limping, that was new to us. The gradually, she started losing weight, so within two weeks she dropped almost 8 pounds, yet she is eating and very excited about it still. And now started the panting which has gotten worse a week ago, she's breathing heavy, with her whole stomach moving. And there are time when she's breathing with her mouse open and her tongue slightly sticking out. And she has started to pee all over the house, she still goes in her litter, but also all over the place. She is still eating, she's not hiding, still like to be pet and be around us, but at times I feel like she's so miserable. We don't know what to do at this point, another visit to the vet will be super stressful to her. And I have no idea what they can do, since last 4 visits did absolutely nothing but make her worse. :(
Lethargy and increased respiratory rate are not specific symptoms as they are shared with many conditions; however I’m concerned that they are a common sign that an animal is in pain, but without examining Marilyn I cannot say whether she is in pain or there is another cause for the symptoms. You should visit your Veterinarian for an examination to be on the safe side especially if this has been going on for a day or more. Regards Dr Callum Turner DVM