Have you seen a pyschologist about this? This is sort of what happens to a person with ADD tendencies instead of true ADD. Their brain won't shut off to allow them to fall asleep and they get distracted easily because of all the thoughts running through their head. My daughter has this and after having her come up with this diagnosis following ADD testing I can full well see that I am the same way. A psychologist is what was recommended to help her work with this problem.