Lump on forehead accomanied by migraines

I've had a lump on my temple right next to my eye for as long as I can remember. And the migraines as well. The migraines are always right where the lump is & are at times so strong it makes me dizzy/nauseated. When I get sick, toothaches, headaches, etc the lump seems to swell larger. It's about 1 inch long & a few cm high. It's in my temple/eyebrow area. I've brought it up to my doctor before but he just passed it off as nothing. w/out really looking at it. It doesn't really hurt to touch, but it just worries me bc of the migraines. Does anyone else have a similar issue??