Betsy It's been awhile since your last post, but if you're looking back here (and for anyone else struggling with this), I wanted to throw this out there. I haven't been diagnosed either, but I was doing some research on my DD5 to see if ADHD might be a possibility for her, and the more I read, the more I saw myself. Long story short, after lots of research, here's what I ended up trying, and it worked really well for me (except that I'm now having stomach issues, so I can't take them). I was already taking 50 mg of 5-HTP daily for mild depression issues, and then I added 25 mg daily of zinc. With the zinc in my system, I noticed a HUGE difference in my attention level. I'd take it in the morning, and by early afternoon, it was like the whole world suddenly came into focus. I was finishing tasks, remembering to close drawers, not walking into rooms and forgetting what I was there for, etc.
If you're not already taking something else, you might try this combo. Just make sure you have lots of food in your stomach before you take the zinc, or link into OptiZinc or chelated zinc as a more tummy friendly option.
And more for you and anyone else struggling with this. Without my supplements, I'm barely functioning right now too. It's awful and crazy-making.