When I was out doing my job earlier, I came across a cat. It was one of those long-haired, fluffy cats, that looks just like a normal cat but with longer, fluffier hair. It was meowing at me so I gently ran my finger along its back as I usually do, but this cat had what felt like a bunch of pronounced hard bumps along its back, not like its spine because it was standing, and I have never felt that on a cat ever. The cat didn't seem to like it when I stroked it there. Was this cat covered in tumours or was it just matted hair, do you think? It freaked me out. Please help me so I can continue my cat stroking adventures.