Stormy is a 6 month old GSD female, on first night with me at 8 weeks old would snuggle up beside me and sleep all night long. I would keep my door closed because of older dog in house. Then when she was 5 months old, left the door open one night and she got in bed in den and now will not get back in my bed. If I call her in my room and shut the door she throws herself against the door and howls. Den is not a problem just puzzled why she all of a sudden doesn't want to sleep in my bed anymore. From what I read on here most dogs want to get in Mom's bed. Any thoughts?