I've recently noticed that Spike has some issues walking and using his back legs. When he does walk around, he is very slow and doesn't book it as fast as he usually does when outside. I'm thinking his nails are too long, which may be why he is not walking as smoothly. How do you recommend trimming his nails, if it's necessary? He's still quite young (5 months) and so I'm wary about using nail clippers on his nails. Would filing them with a nail filer help, or should I just let him walk on pavement more to naturally trim down? He does have a basking stone under the basking lamp that he can use to file his nails, but he doesn't really move around much for his nails to remain trimmed. He also seems to be slowly using his back legs, and I'm not sure if there may be health-related reasons for it.