There is a bad smell all over everything in my room from my cats, but I can't pinpoint what is. Its all over everywhere the cats are, and it's on every cat too. It's not pee or poop, I know what those smell like and this isn't it. Do cats just naturally have a musty smell? Would giving them bathes help? It's not them tracking litter either,I don't think, cuz I have track mats as well. Does anyone know what I'm talking about? Should I be worried? This smell has persisted for over a year now