Re: many questions and lack of motivation
The twitching could be the normal muscle twitching that happens when you are falling asleep- most people don't notice them until they start cultivating trance states- or it could be a 'myoclonic jerk', which has a neurological explanation, however, it can also be explained as a 'reorganizing of your location' (that is, you started separating and woke up suddenly and fell in, jerking you awake) however, the important thing is to ignore these body sensations and go back to your mental relaxation and consciousness observation. (i.e. trance cultivation).
Re: many questions and lack of motivation
I remember about a year ago, they used to wake me up. It felt like someone had a vise grip on my leg, it would hurt to the point of me crying and could last up to about an hour. That happened twice in a row, then about a week later... It hasn't ever been that bad since.