Is this a new diagnosis?

I've been wondering lately if the fibromyalgia diagnosis is a new thing. It seems that I have a lot of friends who have been diagnosed with it. I also hear about it more on tv commercials. I'd never heard of it until a few years ago. How common is it? I kind of wonder if I am hearing about it more these days because I'm getting older and my friends are older as well. It's pretty scary though. At least for me. It tends to make everyday things much more difficult.