I'm pulling my hair out

really. I have a nervous twitch or something, and I always scratch the back of my head, and now there's a spot the size of a silver-dollar on the back of my head that aint got no hair. I guess it's stress? I'm thrilled to death that our baby is coming soon, but my body has ways of dealing with stress that my mind isn't clued in on. good thing I'm not vain. mostly.