I am looking for some advice. We do have 1.8 months old BD Nacho, he is very good boy. Lately I noticed he has problems with his back legs. I took him to the vet, but she is not an expert , she is more learning on him that provide us the answers. Please, see his pictures. Any ideas what is wrong with Nacho? He has something on his spine? Any advice/ info will be appreciated. Thank you.