I have a year and half old dog name Mia who is very sick. My current Vet does not know what is wrong with her. She has diarrhea and goes about 7-12 x per day. She is loosing weight fast but still has an appetite. We have her on Tylan powder and probiotics and she has had a 10 day Z-pack. Nothing has changed with her stool or her weight in fact her weight has gone down. The vet has her on a high calorie diet and feedings of 3-4 x a day or as much as she wants. We are in dire need of help to save our dogs life. She came back positive for cryptosporidium. It has been about 3 weeks of this mess. PLEASE HELP!!