My almost 10 year old girl has always had ear that stood up at an early age. Tonight, I noticed one ear is flat out floppy. She was fine this morning. There is no odor in the ear, I thought maybe it was an infection. She is not just holding it sidewise, it looks floppy and not straight anymore. Going to have it checked out. She is pawing at it from time to time. Has anyone else had this suddenly happen to an adult dog?