Honey is my 17 year old Chihuahua. She has had a few seizures resulting from her running into things (she has a soft spot on her head), she only has a few teeth and she has skin issues (from old age) but other then that, she is healthy. Not major health issues/ Last night I noticed when I touched one side of her head, she kind of flinched, but I didnt think anything of it, she has her moody days and I just thought she didnt want to be touched. I noticed it again today and when I looked at her straight on, it seemed like one side of her head (mainly her ear) was lower then the other side. Im taking her to the vet Monday, but I want to have a heads up. What can cause that?