I have a first freshener doe, 1/2 Alpine and 1/2 Saanen. She had twins Feb 1st. She has a nice udder and teats for a 1st freshener. I separate the kids at night and milk her in the morning. Her udder appears full, looks like I should be getting a quart and a half or so but I only get about one pint of milk from her during milking. She has rock hard lumps inside her udder, seems like two or three per side, the largest being a little smaller than baseball size. Other than the hard things in her udder, she seems otherwise healthy, kids growing very well, no stringies or blood in her milk. The udder itself is not hard and is not hot, she's eating well, acting fine. Can anyone tell me what this is? Will it go away, is there anything I can do for it?