My Greek is 4.5 years old now. It's been pretty healthy from what I can tell, except that its hind legs don't seem as strong as the front ones. When it's walking, the bottom shell isn't parallel to the ground, always drops at the back, but not touching the ground of course. Is this just a personality thing or health issue? I don't think it has stone problems because it never acted like sick, but I also heard sometimes stones don't show until it's really bad. As I am the only one I personally know having a pet tortoise, I've never seen another tortoise in real life. Not sure if this kind of gait is normal. Really need some help.