Abook from an Australian Doc says
hope its ok to quote)
Dr Christopher Green: .....Those with Adhd become rapidly bored and lose their focus.They miss the steps of instructions.They can read a page with little thought for the print that has passed their eyes.Minor irritations can become immensely distracting; the drip of the tap, the flicker of the fluorescent light,the workmates sniff or the hum of a water cooler
Attention usually sharpens in times of high energy or crises.......
(Excerpt from UNDERSTANDING ADHD pg 210 by Dr Christopher Green) anyway hang in there