oh poor girl! I will never understand people like this honestly..people who think of a dog (or any animal for that matter) as a throw away object..its sad..and bless you for taking her in..the rescues are usually quick to reply, hopefully they will be able to take her in, and she can get much needed veterinary care..im no canine medical expert, but she does not sound too good...I wish i could help you out more, if you post this in dog general i am sure someone will be able to give you better advice... keep us updated