I just had Maggie spayed today. When she got home, I let her out of her crate, and her baby, Lady, came to sniff her out and started hissing! She's been spitting at her, hissing, and even swatted in her direction a little. She seems to be pretty upset about her. Why??? Lady is her baby, why would she hiss and spit at her own mother? It seems like Maggie is sad that her baby is acting that way. They were a loving and affectionate pair until I took her to get her spayed, now Lady doesn't seem to recognize her mother. Help!!!