I sure wish I knew what causes fibro. I wasn't having any problems and was merrily living my life. It hit me while watching television. Go figure.
Some have had accidents, viruses, trauma, etc. that seemed to trigger the fibro. I think it's in our system and decides to rear it's ugly head out of the blue. Then we all sit around scratching our heads trying to figure out how this happened to us.
I've had Crohn's disease since I was a toddler but no one knew what was going on back then. I had problems and then cleared up and then it hit me with a vengence when I turned 30. But, you see, it was in my system and wasn't detected and then, BAM!, it arrived. The same thing happened with my hearing problem. Anyway, I'm just guessing like everyone else. I hope they figure this out soon, though.
Sherrine