SP by accident, not fun

So i havent tried to lucid in awhile, and this morning i woke up and took a shower, was tired so i set my alarm clock for 6 and went back to sleep. Next thing i know, its about 5:57 and i try to open my eyes, i hear voices though, i fight to scan my room, i see nothing, just some computers i left on. I cant move my body, so i close my eyes one more time, because i remember SP, but when i tried to get out of it to shut my alarm and get up to go to school, I cant! I started wigging out, i couldn't move anything and i kind of had to get up lol. How come it happens on accident more than i can get it to happen on purpose? And how do you get out of it, because an uncontrolled one kind of makes me panicky.

If your still there, this might help http://www.dreamviews.com/f11/sleep-...ed-fear-20822/

It's said to focus on your fingers and toes, try to wiggle them and keep calm. But honestly for me I just screamed and shocked outta it. Probably not healthy but it worked xD