Without an examination and possibly a blood test, it is difficult to say what the cause for Buddy’s symptoms are; however eclampsia is a possible cause and would require immediate attention from a Veterinarian if this is the case. I am not sure about veterinary care in Jordan but I know that there is a veterinary school in Al Ramtha, Irbid, Jordan if that is close to you if you require veterinary care. https://wagwalking.com/cat/condition/eclampsia- www.just.edu.jo/FacultiesandDepartments/FacultyOfVeterinaryMedicine/Pages/Default.aspx
A cat may have rapid breathing for a variety of different reasons which may include infections, pain, high temperature (to cool down), heart failure among other causes; if your Veterinarian was unable to identify a cause, you should keep a close eye on Skittle and see if there is anything which occurs before an episode as it may be a reaction to anxiety from something. Regards Dr Callum Turner DVM
As with so many cat breeds, little is known of the Russian Blue’s origins. He probably does come from Russia—his thick coat is surely that of a cat from colder climes—and he is considered a natural breed, meaning Matushka Nature created him, not the handiwork of humans. The Russian Blue’s development as a breed, however, took place primarily in Britain and Scandinavia, starting in the late nineteenth century, when showing and breeding cats became a popular activity.
The Russian blue is a sweet-tempered, loyal cat who will follow her owner everywhere, so don't be surprised if she greets you at the front door! While she has a tendency to attach to one pet parent in particular, she demonstrates affection with her whole family and demands it in return. It's said that Russian blues train their owners rather than the owners training them, a legend that's been proven true time and again.