Pounce has started doing something very strange! The first few times I heard it I thought it was a sneeze - maybe an allergy to something in the apartment. But she just did it now, and it was scary! Her whole body almost CONVULSES and she HUFF HUFF HUFFs... this time for almost 30 full seconds! And her nose turns a funny color (kinda purplish red/pink). I have only seen/heard her do it a few times... she was JUST at the vet and got a clean bill of health. Piccalo sniffed at Pounce this time and seemed curious, but maybe just because of the noise. Pounce has no fever, seems well-hydrated, is acting normal and when I listen to her breathing (with my ear against her chest, back, stomach) everything sounds normal. Does anyone have any clue what it could be? I will take her to the vet, but they aren't open for about 14 hours and she is acting 100% okay now.