I have a 300# heifer that I purchased from a local salebarn with some issues. She had scours and pneumonia when I brought her home. Someone told me she may be chronic which I guess they're indicating she'll never get better. I have given her probiotics which is an oral paste for the scours. She is over that problem. The sale barn vet gave her Nuflor and I have since given her penicillin about every two or three days. I've also given her shots of B12 every few days. She is eating and drinking but her get up and go has gotten worse. She lays around with her head down most of the time as though she has no energy. Any suggestions as to how I can get this girl up and feeling better? This heifer was $4 bucks. Yes $4 bucks! I've got more in meds than what she cost me.