Sherlie is 5 month old. She was diagnosed with parvo 20 days back. And she has recovered from it. She was normal, but now and then displayed slight, I mean very slight, which is unobservable to the normal eye, difficulty in getting up. But once she was up, she was quite normal. 5 days back we took her to a vet who ingested 500 ml of plasma ( she was 10kgs) and prescribed diarest in the morning and evening. The very next day after she took plasma, she was unable to move or raise. Even if we made her stand, she arched her back and would drag her hind legs with much difficulty. What would be the problem? Though I insisted on doctor to diagnose, he would not commit himself and suggested that we would continue the treatment for some more days. He prescribed joint plus, diarest and other vitamin supplements all to be given couple of times a day and a couple of injections every alternate day, what the injection is I couldn't catch. Her appetite is normal. Stool is normal today, though the stool was a bit black till yesterday. It's been almost a week that we slept soundly. Any suggestion or help is highly appreciated.