The neurological basis of inattention seems to be certain parts of the brain are in a less active state. This can even be observed on an EEG in many cases.
- beta: alert focused
- alpha: relaxed
- theta daydreaming, dreaming
- delta: dreamless sleep
The state associated with ADD is theta wave. I would expect a person with ADD to excessively daydream. The brain is in an under-stimulated state and alot of the creative thinking in persons with ADD is the brains trying to
stimulate itself. Chronic boredom would be a common problem to. Things the brain did not find stimulating would
make the brain want to look for other ideas (random thoughts) or perhaps slow down to delta (fall asleep).
Some researchers think short term memory manipulation
deficits is another way to characterise ADD. Such as remembering a list of data and then preforming some operation on them in your mind. Would really become very taxing quickly for a person with ADD. Though like myself a person who was an above average student anyway may still
function enough to never be notice by teachers or themselves as having a major problem.
Treatment is not trivial either. Stimulants can force the mind into a beta state but a person will lose alot/most of their creative spark since their brains will be rarely in a theta state. A person may not feel like themselves as a result to. In extreme cases its often a matter of getting no
creative work done with out treatment and alot mediocre work done on meds.
If your already fairly productive as I have read in your other post in the thyroid section you might already be at an optimal state. Are you using large amounts of caffeine, nicotine or ephedrine?