Re: electric/shock sensation while falling asleep?
Hi, in my case, it was hospital related. Possibly the stress of being in there, coupled with the wrong medication given to me. They lasted about 3 nights and my Blood Pressure machine was showing random readings, that were mostly high. I found drinking water helped. I drank ALOT of water for 2 weeks! They are gone now, but I understand your fear.
Go to doc and get Blood Pressure checked - or it could be Sleep Apnea (you don't know if you snore do you? There's a link - something to do with a deviated septum - which I have- give it a google) or it could be Stress related palpitations. Either way, you are young and otherwise fit, so try not to stress yourself! Easy to say I know! - make an appointment with your doc and tell him/her the symptons, it will calm you down knowing a professional will look into it. Good luck.