Good idea Smokey!
I've got A.D.D, well that's at least what the therapist at my primary school said ....and although I don't necessarily see it as a problem that needs to be medicated as such I do find that cannabis genuinely helps me focus better with my work. Maybe that's just because it makes work more fun who knows but either way it does help me.
In the case of headaches I turn to cannabis before any pain killers.