I have a heifer due to calve sometime this month or next. She has removed herself from the herd and is in some brush standing alone. She has been this way since monday. Is this normal....for this long of a time. I took her some cubes today and she came over and started eating them. What worries me is that she isn't coming to hay and looks like she is losing a lot of weight. Any ideas? There is a very small amount of musous coming out of her that makes me think she should be about ready to calve. Nothing has changed for a week, except her weight.