Dog ears flopping violently - Answered by Dr. Van Lienden

[fuze44]

My dog, a half-border collie, half-german shorthaired, has started shaking her head back and forth rigorously, making her ears flop, as if she's tryin to dry off. She'll make them flop about 12-15 times and then stop, and then do it again about 3 or 4 more times. She will then cease for an indeterminate amount of time, and then start over.

This seems like she might have an ear problem, like fluid buildup or something.

Anyone encountered this?

Thank you.