Ok I'm going to post this although I understand it may get deleted by mods. Anyway I'm in CA where Marijuana has been in limbo between legalization and prohibition.
My question: Does anyone know how marijuana can cause someone to get a headache? A lot of the time when I smoke (almost always from a blunt) and go to sleep, later when I wake up my head is killing me. Anyone know why this is? I'm wondering if it is somehow dehydrating me perhaps, any suggestions would come in handy.