Hello, This 10yo alpaca belonging to my friend and neighbor has over the last month or so developed more of a drop in his feet and a sway in his back. He had a bout of diarrhea just prior to this and was treated for worms. His current fecal came back negative. He is eating normally although leaving his minerals. Is this possibly a mineral deficiency or other underlying problem that can be treated? Thanks so much for your help and advice. ~Betsy