Keeping her overnight is the best and most difficult thing to do for your new baby. She has a serious illness that needs to be treated in a Hospital. I am sorry your little one is so sick . Rememebr that she is in good hands. It is fortnate that you kept following through with her medical care, and you had your father help you . Otherwise your puppy may have become even more sicker without the propper treatment. Early intervention is vital. You may have saved her life. You are a wonderful mommy.
