Nancy, I know it's been a few weeks since you wrote, but I haven't been to this site in a while and just found your post. Ironically, I found it because I'm going through the hypochondriac thing myself and I was looking for posts regarding headaches.
About a week ago I bent over, and when I pulled myself up I felt a little popping sensation on the side of my head that I've had several times before throughout my life without problems afterward. This time however I started getting this split-second shooting pain in my temple about once a day, when I'd turn my head too fast or bend over. When I mentioned it to my mother she gave me her usual grave look and said "You should get that checked out." My mother is a bit of a hypochondriac herself. This sent me over the edge a bit and I spent all day yesterday and all night trying not to freak out about it, which is exhausting in itself. Since I started worrying about it I've now developed a mild pressure in that area, maybe just because I'm concentrating on it or maybe just because it's PMS time.
I'm thinking that since our skulls are covered with muscles, maybe I pulled or strained one and that's what I'm feeling. My problem is that although I can tend to be a hypochondriac I'm also phobic about doctors and have no health coverage anyway so going to see a doctor for reassurance isn't really an option for me. Plus, in my experience doctors can be very cold when they suspect I'm just a hypochondriac wasting their time. It seems like whenever I've gone to a doctor with a problem they can't give me an actual diagnosis, so maybe all my problems have been psychosomatic and I just need to relax.
So now I'm babbling, but I guess my original point was that you're not alone. Every pain I get (abdominal, chest pains, etc.) always scares me into thinking of the worst case scenario. In fact one of the reasons I hadn't been to the site in a while was because all of the "see your doctor" posts were adding to my anxiety because to me it was like validation that something could be seriously wrong. I understand the reason for them, especially from a legal standpoint, but it still freaks me out.