I am on the last step of my Wellbutrin SR with a quit date 2 weeks away. I've been on 150mg 2 x day for five days now and feel very jittery and my hands tremble. Is this normal? It doesn't bother my sleep at night (I take my 2nd dose just prior to bedtime) but during the day I feel like I've had waaaay too much caffeine. I've given up my coffee and my diet coke but still feel very jittery. I hope quitting the smokes is as easy lol Any suggestions?