No matter where she sleeps (my bed/her bed/anything) she sometimes starts scratching the surface in a kind of sitting position.. what does this mean?
She is getting herself comfortable
Most dogs scratch on their beds before they lay down. Even if the bed is only a towel, they will scratch it around before laying down. This is a very old, instinctive behavior of dogs. The dog is trying to make a nice bed or nest.
Perfectly natural behavior, just like when they spin around before lying down. Possibly an instinct from their wolf ancestors of tamping down tall grass before lying in it
no es nada de que preocuparse son cosas de los perros tienen costumbres, si se rasca por que estan sucios, y su cuero cabelludo les rasca, o tiene pulgas.