I have had about 10 hours sleep in these 4 days since I have quit. I have felt nausea since the start. Some how I have still been working my night shifts on minimal sleep. I have never had any problems sleeping and its worrying me a bit as I have MS and its making all my symptoms flare up. I have tryed herbal sleeping tablets and lavender etc etc and I am still not sleeping. Help how long does the not sleeping last??