I give my cat her vaccines myself becouse she acts like no ther cat at the vet. really crazy, even towords me. So my question is about cat litter. I always used clumping regular cat litter. My cat mannaged to get it everywhere since it was stuck to her paws. I recently about the last 3 months have been useing the crystals and I really like how they don't sitick to her paws as much at all, it is much cleaner. However I have recently notice when I hold her mouth close to my ear I can hear her breathing and it sounds a tiny bit congested. She is an indoor cat and is up to date on her vaccines so I am wondering if it could be the new litter? I have noticed that it is a quite bit more dusty than what I have used in the past. Can you tell me if I should change litter to an expensive organic litter or could it be something else?