the twitching thing is nerve or muscle related, something about nerve impules when your body starts to relax during sleep. it's absolutely not unhealthy or dangerous as far as i know.
This sounds bad but do you drink a lot of booze, slip? I've had similar symptoms when partying a bit too hard while vacationing with friends in the past, and a quick googling seems to confirm that the two can be related.
i don't suffer from this but the whole feeling of tiredness you guys mention can also be related to sitting in front of the computer all day, pushing the soapbox around. i know i get awfully tired if i suspend working out for just a few days in a row. as for sleeping habits - i am unable to sleep well at all with the…