For awhile now my dog has been acting really strange. At night when it's time to go to bed, she starts acting weird. Like she will start to panting very fast and very heavily, then she starts to pace back and forth from the bedroom door to my bed. Considering my bed is low to the ground she then jumps up on the bed and on top of me and starts to scratch me as if to get up. When I tell her No and to go lay down she doesn't listen and she proceeds to nudge me. Like gets her body under mine. If I don't get up then she keeps doing it. She has never done this before and she has never disobeyed me when I give her a direction. I have no idea what this means or if something is wrong with her. Do you have any ideas?