Has is been 4 days since your last one? You only took them for a few months right? At 4 days you are almost over the worst of the physical w/d. Sleep is another story. I did not sleep for 3 straight days and 5 hours on the 4th day. Most people have the worst about 3 days in and slowly get better after that, but everyone is different. fatigue will last a while, so just accept you will be tired for a while. Cravings are also a lingering problem that last longer than the physical part. Have you tried to get a prescription or OTC sleep aides. Sonata, Ambian, Serax, restoril are some that will help you sleep.