I need some advice on a cow who has been sick for a while. I'm new in the business and although I have an animal science degree I deal mainly with horses and don't remember much from my cattle disease classes. is an older cow in my pasture that has been bloated for several weeks now. She was potentially pregnant so it was originally thought maybe she was carrying twins, but she has never bagged up and it is now past the time she should have calved. Her stomach is so distended and she seems very uncomfortable. She has gone off eating the last week and appears to be losing weight and going down. She doesn't present like a toxic pregnancy and this has been going on over such a period of time nothing I know of really makes sense. I have never seen another cow have a problem like this. Does anyone know what could be wrong with her?