Thanks everybody. He seems fine today. He shook his head all evening, I massaged his ears quite a bit, it seemed to help. Amy, he did what Nebo did - kept his one ear out straight, I was worried because it seemed to affect his balance and he was snarling at Star, too, but he seems fine today. There's no fleas or ticks around, but seeds from plants are all over the place, being fall. He runs into things off and on, so maybe that was it. Thanks for your replies, though, I was really worried about my shy boy last night.