Iam not a medical marijuan user.But my dad fell 25 ft from a scaffolding when i was young and had metal plates in his head also.Put him on all kinds of shit which really fucks you up,not just buzzwise,but mentally,emotionally,and physically.It severely made his quality of life decline to the shit.Its great to see that you were able to get off the pills and use a much better alternative. I know medical marijuana works for alot,and i think by all means it should be legalized.Like i said,im not a medical user,but it does help me with alot that ails me in life.Welcome bro,and keep up the good fight!