I found this article to be a great help understanding
myself and I hope it helps others.

What's It Like To Have ADD? by Edward M. Hallowell, M.D.
[link]

'So what's it like to have ADD? Some people say the so-called syndrome doesn't even exist, but believe me, it does. Many metaphors come to mind to describe it. It's like driving in the rain with bad windshield wipers. Everything is smudged and blurred and you're speeding along, and it's reeeeally frustrating not being able to see very well. Or it's like listening to a radio station with a lot of static and you have to strain to hear what's going on. Or, it's like trying to build a house of cards in a dust storm. You have to build a structure to protect yourself from the wind before you can even start on the cards.

In other ways it's like being super-charged all the time. You get one idea and you have to act on it, and then, what do you know, but you've got another idea before you've finished up with the first one, and so you go for that one, but of course a third idea intercepts the second, and you just have to follow that one, and pretty soon people are calling you disorganized and impulsive and all sorts of impolite words that miss the point completely. Because you're trying really hard. It's just that you have all these invisible vectors pulling you this way and that which makes it really hard to stay on task.

Plus which, you're spilling over all the time. You're drumming your fingers, tapping your feet, humming a song, whistling, looking here, looking there, scratching, stretching, doodling, and people think you're not paying attention or that you're not interested, but all you're doing is spilling over so that you can pay attention. I can pay a lot better attention when I'm taking a walk or listening to music or even when I'm in a crowded, noisy room than when I'm still and surrounded by silence.'