As the poker sub forum seems to be gaining traction lately I thought I'd ask about an issue that I regularly have whilst playing long sessions. I have recently started to play 1/2 live weekly mtts at my local casino but after about 3/4 hours in I almost always find myself with a pretty painful migraine. I don't know if it's the fact I'm trying to concentrate for long periods, the lighting, the temperature or what but 90% I will leave the casino after I've finished with an awful migraine. So much so that it almost stops me from attending. I know we have some serious poker players on this forum so I was just wondering if anybody suffers from the same issue and if so, what they do about it? Funnily enough I can play a drunk session for hours on end but never seem to suffer the same migraine that would come on playing sober.