DH's ADD didn't cause him any problems until he had to balance work, home, family etc as an adult. Through his PhD there were no problems. But with all the interruptions of adult life, he had a hard time switching focus and found it exhausting and was grumpy all the time. Hyperfocus is great; the problem is when you can't find the intermediate levels of focus necessary for making dinner and making sure your kid doesn't run in the street, while talking to your spouse about the day. kwim?