I was lieing in bed for at least 1 hour, and I started feeling a really odd tingling sensation. As if I was shivering from cold. Even though I knew I wasn't. It happened every 5 seconds and it swept over my whole body. This happened for another hour as I tried to fall asleep and was extremely distracting. It didn't happen to me on my other attempts.

WTH was that?! Thanks in advance!