[red98vett]

This also could have nothing to do with her head - is she going to the bathroom ok ? Sometimes when they're constipated they act very strangly because they don't feel well.....you know her best so just keep a good eye on her. I would think a concussion would have more symptoms but then - I've only had one ...never seen a dog with one..

Good luck and hope she starts feeling better !! Make sure you keep her hydrated and if you can get her to eat - anything is good at this stage - chicken is always a good start....I give it to my girls (no skin of course and very lean)

edited to add - you don't think she got into something and ate it do you ? You may want to check your house for any evidence she may have gotten into something....even under furniture