[drbawb]

> In my case: I am near physically incapable of doing things that I "need" to do, with the more I "need" to do something, the harder by brain and body will rebel against doing it.

This is interesting to me. I find my own behavior is the exact opposite; I have no internal concept of need. I will do everything in my power to avoid starting a task until someone says it "needs" to be done. So in my experience the need is always externally motivated: it's usually just a deadline, or some other authority micro-managing me. ("I'm meeting with [customer] tomorrow and would like to show them [x] from project [y] is that ready?" => I will move hell and earth to do [x], and not a minute sooner. There's some activation threshold there. It is definitely not calibrated where it needs to be, but my ability to "thrive under pressure" has allowed me to cope, as long as someone/something holds my feet to the fire.)

Also I find deadlines are a lot more effective for adult-me than they were for child-me. I think that's mostly because I've got project managers to lean on who are creating those schedules, tracking them, and keeping them visible. Whereas in school child-me was expected to be my own project manager. (Yeah, that was never gonna happen. Many tried to get me to jot dates down in my little day planner. Many failed.)

Disclosure: I'm not clinically diagnosed with ADHD, but from all I've heard/read about it I would not be terribly surprised to find out I have it. (Although I would be surprised to find myself having sufficient motivation to go out and get proper help. ;-P)