RMS

[Vuk]

RMS can mean a lot of things, but in this case I am referring to Random Muscle Spasms. :P What the heck causes them? They happen to me a lot, esp when I do not get a lot of sleep or when I am stressed out. They are not powerful enough to actually make me or my limbs move (other than one time when I was lying down, but I think that was more of a cramp), but they are quite powerful and visible through the skin. They just fire off and on like a machine gun, and it can last for 20 or 30 minutes. It happens on all parts of my body (back, chest, stomach, legs, arms, neck, face, head, etc), and usually all the muscles in one area will take a turn randomly spasming, and in the next few hours/days it will switch to another part of my body. It seems to happen esp to my triceps, forearms, and legs. Does anyone have an idea of what could be causing it? I know this much, that the same thing used to happen to my dad, and it happens to one of my sisters and two of my brothers as well.

I looked it up on Wiki, but only found references to it in disorders, infections, and diseases that have all kinds of other side-effects that I do not exhibit.

EDIT: Oh yeah, one other thing. It may just be my imagination, but whenever I look at or consciously think of an area that it happens too, it seems to not happen nearly as often until I focus my attention elsewhere. Also, the part of my body that it happens to often feels really weak afterward, and then it happens to another part of my body for a while.