Hi Gina,
here's the ans:
1) 1 session will last abt 30-45min in total. becoz 1 doc will put something on ur ears, then anther doc will poke needles on ur body (30min).
2) the doc will put some electric current to the needles. your whole body will not vibrate but depending on the intensity of the electric currents, sometimes ur stomach will vibrate. i always ask for very stong electric currents, my stomach will vibrate lor but i heard results will be faster in this way..
3) no. they dun massage after acupuncuture
4) i haven't measure myself yet, but i know my clothes are slightly looser, stomach is more flat & tight. i just feel that i have done alot of crunches when i didnt do any at all. after a few sessions, u wont feel like eating anything lor.. which is something that i like abt the whole thing..
alot of them lost alot of weight is becoz of water retention. so i guess people eg. me will focus on inches loss than weight loss lor.