My 6 yr old BLF is usually really clean in her heats. Sometimes hard to tell she is in heat. This time, she went through a really strong heat, bled much more than normal. Since then she has started to show signs of udder enlargement and lately she thinks she is starving and doing a lot of nesting actions in the whelping room even though the whelping box is not there. Is there anything I can do to help her through this. From what I have read, there is little you can do other than wait it out. I just feel really guilty when she acts like she's starving(more than her usual act) and scratching at the floor. Anybody have any suggestions? She has had 3 litters and has never had this problem before.