When the nerves in my foot had pressure on them( caused by a doctors exam, thunder and lightning storms, changes in temp or barometer) my toes would each spasm to a different beat.

It was so bizarre to watch them twitching and jerking around with minds of their own. It hurt like hell when it happened.

Nothing helped it go away completely until my chirorpractic adjusted the bones away from the nerves. Whenever the bones would shift back - the muscles would spasms again.

So, in my particular case, muscles spasming was caused by something pissing a nerve off.

Peace and hope,
Lisa