Spasms are when your muscles contract for no apparent reason. Like your calf might start jerking slightly, or another part of your body. In some cases they can be very violent and painful, but they are usually more of a nuisance.

And Warblesnap, first let me say hello. I've suffered with FMS for about five years now, and I do have bouts with muscle spasms from time to time. It is usually confined to one area, but once my muscles kept twitching every second or two all over my body. Since the docs could never find another reason for them, they told me it was probably the fibro. The strangest time was when I started having tiny but strong spasms in my abdomen. When I laid my hand on them, it felt for all the world like a baby's kick. I'm glad that's as far as it went! Good luck to you, and I hope you get them under control.

Idealist