Very strange headaches

[Sparkster]

Hey everyone, as the title states I've been having VERY strange headaches, along with sickness for a few years now. However, these headaches are not normal as they are triggered by certain words or pictures, sadly i can't remember what these words or pictures actually are because after the headaches it dissapears. The only reason I've decided to ask now was because my girlfriend thinks it's from the times I was bullied in the past playing back, which i'm not too sure why that's triggered by words. my latest one was today (21/08/09) The only thing i remeber is the colour black. I hope someone can shed light on this =3