I think Emma is back to normal. Today we were at the beach, and as I was holding her I realized that she was humming a little tune. The tune bounced around in my head and I made the connection: it was the same "Bird of Prey" song that I sing while holding her aloft by her legs while she balances herself. So I did that, and she wore a huge grin and even giggled a bit, the first time I've heard her do that. It was a joy to see her with the sun on her face and the wind in her hair and smiling so!