Yes!!! Mine was sudden onset... 27 years ago. Felt like I’d been hit by a truck. Then the 2nd day I couldn’t move.

I too kinda feel like that. It seems one day I was fine, and then I had pain. Now its been a year, with a final diagnose in November last year.

Yes mine started that way In 2007 lasted until 2009 then didn’t return until 2018

I get muscle jerks and spasms everywhere mainly arms and legs

@A MyFibroTeam Member, I think it could be caused by anything because no one, even Drs, really knows. I have had aches and pains my whole life. Drs used to call it growing pains. But in college, I had a car accident that I walked away from, but within days I started feeling stiff and sore. That never really went away. Could be soft tissue damage from the accident??? Who knows. I also know that others started having trouble after child birth, other types of a accidents. There are so many reasons. If they ever really studied it, I think that they would have many different categories. Whatever, the reason, it seems to be things that affect the central nervous system and the vegus nerve. So, it very well could be harmones.