I have a brahama heifer thats about to have a calf. The problem she is haveing is that her navel has sowlen so big that it looks like a second milk sack. None of my other cattle have even done this. I notecied that everyone in a while she will kick at it like ites bothering her. The navel buldge lookes like it may be full of fluid, possibley milk im not sure. Can anyone tell me if i should worry about this or not? She should have a calf any day now. Thanks in advance.