Within the past year or so, though once i was diagnosed it became painfully apparent to me and my family that i had been demonstrating the symptoms since I hit puberty; we just didn't notice until it was pointed out. It just stops me from being fully effective because I'm constantly moving around and stopping in the middle of tasks to do other things. When i try to force myself to concentrate it works for a while but then i just lose concentration anyway and find myself walking around. I don't take medication, but that is a personal choice. When it was offered I just said no. Sounds silly but I just don't like taking medication for things that aren't dangerous. Maybe i should have inquired further. I also find myself losing my trail of thought a lot, rambling and talking too much in conversations. I'm fully aware that it happens i sort of just can't help myself. Like i said i can sort of prevent myself but it just isn't possible sometimes (which is the very nature of a disorder i suppose). When considering my well-being it makes it incredibly hard to put on weight because something is always moving; I'm never still. Just remember there are different types and degrees of ADHD (the adult one is best defined by the symptoms listed here so my experiences may be, and likely will be, completely different from your family member. Lastly i suppose as a bit of a meta end to this long and bloated paragraph, I got up and walked around once while writing this paragraph and tabbed out a few times to do other things too; it's quite ridiculous when i notice it, this post has taken me 10 minutes to write. If you have any other questions feel free to ask, but i feel that you would be better off asking your family member, because their view on the situation will be way different. Though if you are wondering on how best to deal with it, I'd say that without medication, I'm really not sure.