I'm a medical marijuana user in California. I grow my own. I was attacked at age 3 by a kid with a hammer, resulting in a half dozen dents in my skull, a large "L" shaped scar in my scalp and migraines and cluster headaches. I discovered at age 19, that cannabis got rid of the headaches. I also have a bad back and arthritis. Why it works? I don't know, but I'm glad it does! All I know is that if I smoke a few joints, or better yet vaporize some pot, the headaches go away! I am a member of treatingyourself.com, one of the best MMJ sites around. I am 59 years old. (and Paul, move ASAP! Getting legal will lift much of the stress you're under)