Oh my cat has that smell quite often too. She has no depth perception when she goes in the litter box so she thinks she is okay but just ends up peeing on her leg. Or she will step on her wet litter trying to scrape other litter on top. That wet litter sticks to her mittens and she walks all over the house with it. And hops up on the bed to say hi. So yeah I got the same stinky kitty often too lol.