i went 35 hrs without my usual 0.5 mil of xanax once a night for sleep and had to take a half of a 0.5 about 2hrs ago now i feel so slow and weighted down i am tired but cannot sleep the heart palpations have stopped and the agitation too but i hate feeling doped up how long does w/d last ? i am desperate to get off this stuff. like i said i only take 0.5 once a hight for sleep but a couple of days ago it was giving me the most horrible nightmares and i would only sleep about two hrs and wake up with feelings of electricity going through my body and all jittery why????????I want off this **** now any ideas