so i was lying down, trying to go to sleep, when i just started ... shaking ... like, my muscles were just ... itching beneath my skin, like i needed to stretch really bad, but it was like all along my back and arms and legs ... it still feels crawly and weird along my shoulder blades but not as bad... but i still just feel like i need to get up and flail around to make this feeling stop. i get like this every so often when i'm trying to go to sleep. not just the normal sleep-twitchiness, where i'll be really drowsy and then "shocked" awake by a sudden twitch. this is all over and it freaks me the fuck out.