I suffered from ADHD as a child and young adult. My mother used Ritalin to control it. When I had finally had enough of the way Ritalin made me feel (I didn't feel like myself on it, I often times felt subdued and distant.) I stopped taking it. It was very difficult for me to hold down a job at the time and had never really experienced weed up until I was approx 23 years of age. (Sure I had an occasional toke but it was never consistent like it is now.) I now use
marijuana to control my excess energies and it definitely helps me focus after the high has disipated. When I have not smoked for several days (like now for instance) it is very difficult for me to sleep on a "normal" sleep schedual.
I know exactly what your going through and then some.