Thanks for the replies everyone. I really appreciate it.

freewill: I have tried the "I will worry about it tomorrow" thought. In some cases it does work. If it's something minor, postponing the thought does help because soon I'll forget about it. If it's something big and serious, the feeling usually lingers with me for a long time, but the severity of my fears lessens if I try putting it off.

Soidhonia: I've thought about seeing a therapist (don't have the money right now). I never really thought there were medications out there to help with these types of feelings and thoughts, but that's definitely good to know.

Pilatus: Actually, I'm terrified to get my annual physical examinations! I know I should, but I don't have the courage to do something like that right now.

Perna: I can relate to your story somewhat Perna. I'm overweight, but sometimes I think I exaggerate how much. Last year my sister and I went to an amusement park and I spent the entire day whining and afraid that I wouldn't fit on the roller coasters and that I would fly out if I rode them. I eventually came to the same conclusion as you: I came to have a good time, so I'm going to. I rode all the rides without a problem and ended up having a pretty good day.

JustAPixie: I think the worst part of myself being a hypochondriac is that, like I mentioned before, I can't make myself go to the doctors to get checked out for everything that terrifies me, so it just ends up lingering in my head forever. Plus, it's not just me that I'm so worried about; it's my entire family. I'm convinced that if something has burdened me this long and I (or a loved one) actually does go to get it checked out, the outcome won't be so good.

January: Thanks for reply. I really am thinking about going to see a therapist (once I get a little money saved up).

Once again, I really appreciate everyones response. Talking about it does help a little.