I wish you luck! I have the opposite issue. I'm ... what do you call it? neurodiverse (at one time, I was an "aspie"), and I can actually get locked into a fugue, so strong, that hours go by like minutes. In the aggregate, it has worked out OK. I'm a damn good programmer (but a total nerd). I do have family that have suffered from ADHD, and hope that your app may be helpful.
To echo the other comments here, you are describing ADHD, not its opposite. ADHD doesn’t mean you can’t hyperfocus, far from it. It means you find it much harder than a normal person to directly control, through pure will, what to focus on and how widely/narrowly. So at times you’re highly distractible and struggle to focus on things (sometimes even when you know they’re vitally important, like listening to the questions in a job interview), and at other times you struggle to tear yourself away from a task you’re engrossed in (even when you know there’s something urgent you should be doing) - the fugue state you describe. It’s a lack of ‘executive function’, and you can actually see this on an MRI scan - ADHD brains apparently tend to show much less of this type of activity.
As a rough analogy, ADHD is to focus as bipolar disorder is to mood.
