Very sick Pitbull need help
I am posting this for a friend, his dog is currently in the Vet and not doing well. Her symptoms are she threw up at first and had blood in her urine. Now she will not eat at all or drink. She has gotten VERY skinny. The Vet gave her antibiotics and checked for bacteria in her stool and found nothing. Acting very lethargic also. She is only about 3 months old, also she is shedding right now which I didn't know if that was early or normal? This is about all I know. I know it isn't much but we would love to hear some opinions. Thank you so much in advance. The Vet doesn't seem to worried and thinks she will pull through but my friend is pretty nervous and says she looks very bad (super skinny).