When I got my bp and brought her to ths vet tge next day she was considered anorexic bc the store never fed her and she for very thin. She was only a little over a month old. She didnt eat on her own so they began to tube feed her until she was able to learn to eat which took a month and half since my lil baby was so shy and stressed. Now shes eating amazingly but she needed that tube feeding to fet her started. Ur lil bud may need that but you should really bring them to the vet