I am a 21 year old female, previously diagnosed with bipolar disorder that is occasionally accompanied by symptoms similar to psychosis, though missing several of the common symptoms associated. Recently, I have developed a muscle spasm that resembles a tic along my right arm. The entire arm is effected, usually starting in either my hand or my shoulder. I can supress the sensation, which is remarkably similar to a body rush, but it always ends in some form of spasm.

It seems that it strikes at random, sometimes hitting during times of stress, while at other times there is not a major stressor to be identified. I have never had a problem with twitches, tics, or any similar conditions.

What does this sound like to you?