I'm not sure kickball, but the oversensitivity may be related. When DS9 was 6, he learned about global warming at school. He couldn't sleep and talked about it all the time. It was of such concern to him that I was worried. We talked about it and eventually he calmed down, but I asked his teacher to let me know about topics that would be troublesome so I could help him. I wonder if that's what "emotional excitabilities" means.

I've also heard depression is higher in gifted kids--I can see why.