First of all, is he still taking any of the meds? I have ADD myself and I am 52 years old and I started treatment about January this year for the first time. I wound up in the hospital with supposedly a heart attack. Dont know what happened yet. My family Doc. says I had a heart attack but other Doctors say no. Ive been reading a lot about anxiety assoc. with ADD, which I do have a lot of. I have stuck with my treatment through it all. As time goes on the anxiety has got better. I couldnt take Aderal, I am taking Dextroamphedimine 10 mg. tabs and they do help my mood much better. I wasnt lashing out to start with, just holding it in. Maybe try not reminding him he already told you something and he will quit worrying about it and some of his obcessing over it will go away and in turn make for a better mood for him and you. My husband tells me all time that ive already told him stuff or he toid me something that I forgot. Ive found if I dont obcess or dwell on it I can keep the anxiety down and in turn Im getting better. Not expert advice by no means, just from an also frustrated person.