Rigor mortis

Why does the kind of stiffness that can be likened to rigor mortis occur in the body of someone with fibromyalgia; are there any clues why that could happen in a living-breathing person? Rigor "stiffness" mortis "of death" says it all really....it is a condition of death so what makes it appear within life for just so many people, resulting in a kind of half-life. I had been here before but this time I wanted to get to the bottom of the mystery...

OK, so I overdid it…but I learned a lot

There's nothing to be lost by being wrong (as I am prepared to admit), just as long as you learn from it. Better still, regard it as an opportunity to mix the timely reminder together with new things that you have only just become aware of...which is when you realise there really are no mistakes, only evolutions! So, last time I shared about getting back on my bike and here's how it went afterwards...