Finally decided to call a vet. The first week of the year. She decided to treat her with another dewormer (safeguard) and Albon (a sulfa drug for coccidia). She is like a new animal! She no longer sits in her own poop, jumps up anytime I approach her, runs and has a serious appetite now. I tried to put a rope halter on her today and she was actually bucking! We can't call her lazy daisy anymore. Vet says her growth is definitely stunted but she can certainly grow up to be a productive animal. We'll see.
Adam, I certainly agree with all the things you said, except I think us homesteaders are determined enough to realize when we made a mistake and not let it keep us from doing good things in the future. I'm still not sure my family is willing to make the milking commitment right now anyway, but one day we may buy a cow already in milk and keep daisy around to see how it goes.
Thanks for all the comments.