I was wondering what everyone else's experiences have been with marijuana and headaches. For me, I get frequent tension headaches, and very infrequent migraine headaches. For my tension headaches marijuana has almost negligible effects. For my migraine headaches though, it completely disappeared instantly. I was wondering if anyone had similar experiences. I have a very small sample size, so I'm not sure if it was a fluke or not, but if it is the case, I am so grateful that there is something I can do about my migraines.