Has anyone ever come down w/ having "jerking" movements , that come out of the blue, that happen very quick? I get it usually later in the day. I will be watching TV, & I'll get a very quick & hard jerk over my whole body, that I can't seem to control. If anyone has had this, do you know what it is, & what I can do about it? I don't know if it's a type of a seizure maybe, or just the fibro causing it. If I tell my GP about it, I'm sure he'll be wanting to do all these expensive tests like CT or MRI scans to see what's going on, get charged $3000 , then say everything is normal. Someone please advise.