Ya, I was fairly sure that was what she had. So a couple of things.
First, there have been some studies that show exercise increases serotonin which is also what the stim meds do. So there is a good chance that the exercise she is getting does help calm her down for a period of time. I think essentially, that swimming was something that helped Michael Phelps get through this childhood (he has ADHD too).
Second, your problems are the same ones I see over on the ADHD website, which is why I asked the questions I did. I just can't believe that for over 6 years no doctor has given you the basic information about how to work with an ADHD kid. Literally, all the stuff that is driving you nuts is very common ( and is driving all the parents nuts.). And that also is why your discipline attempts have not been very successful. Those methods just don't work very well with kids who have ADHD.
I am guessing either she is not on meds? How has she been doing at school?
Ok, long story short. Get the book, "The ADD/ ADHD Answer book," by Susan Ashley. Its about 10 bucks on Amazon. It will give you how to help her at home. How the school can work with her. How to effectively try and change her behavior. And most importantly, it will also give you a feeling for how ADHD effects kids. That apparently is something your docs have not bothered to tell you - and from the questions I get over on the ADHD forum - this happens a lot.
I will be glad to help with any specific questions. But since these are ADHD issues - not bad parenting or weird child behavior - please post here -
http://www.medhelp.org/forums/ADD---ADHD/show/175
Oh, at this age I am not surprised to see that the kitten being returned did not bother her a bit. I am curious about her grades. Beginning to get the feeling that she may be a fairly sharp kid. And, we do need to talk about her not interacting with other kids. She needs to learn how to do this. Punishment (or isolation) is not the way. Please keep in touch. Best wishes.