Ugh, this bothers me. I'm having these problems too.
Lilly always shakes her head... like a dog would if their ear is the wrong way then they shake to fix it. BUT, her ear isn't messed up, it's fine. She does this a few times throughout the day. She also rubs her head on the carpet quite a bit and she was scratching at the sides of her face/ears.
I told our vet this and he looked in her ears and said that they looked fine. I can't remember though because the day before that I think I had bathed her and cleaned her ears. If she continues, should I take her back and have him swab her ears? I just hate to keep complaining and asking about it but it bothers me.
I'm such a worry wart.