Hey Chris, you are certainly describing some of the symptoms
of AD/HD - probably more ADD.
One sure symptom for me was to examine a kids
test and look for stupid mistakes. Kid would do really well, and then start to self destruct on simple questions later in the test. They just couldn't focus - and they wanted to. In the book, "The ADD/ ADHD Answer book," by Susan Ashley (you might want to buy it), she basically says on p.