Below is a link to a website that explains what CMP (chronic myofascial pain) is and how it differs from fibro, and all about trigger points, etc....
http://www.sover.net/~devstar/
The author of the website is also the author of the BEST book about fibro and CMP (and in my opinion the book should be required reading for anyone with fibro and/or CMP and any medical professionals who diagnose and treat fibro and/or CMP).
I have both fibro and CMP and if my hands weren't killing me tonight I would write a lot more info.... but for now I will leave the link, and hopefully tomorrow I will be able to type a lot more
Liz