I know it's possible Hypnic jerk- but I've had in a number of times over the last few hours- like at least 10 times. It just a brief moment where to try to sleep and suddenly I kinda jerk, feeling breathless before arising trying to get up. It also makes me heart kick up a fuss because I get a little jolt Everytime- I'm worried about the working order of the heart. I know I'm overthinkong but my body is so tried after everything these few weeks...yet