Any time there is an abrupt change in behavior or habits, particularly in an elderly dog, the first thing to do is take a trip to the vet & make sure there are no physical issues going on. It could be something (pain? confusion?) or it could be nothing but a new preference.My elderly pit terrier has recently started peeing and pooping in this one specific spot in our yard just infront of the flowers. I'm not sure why she's changed her restroom routine she used to just go everywhere... Like everywhere even on the concrete slab path. So why is she now pooping in this one tiny little spot? Is she okay? Should I be worried?