Max, this is an uneducated hunch, but I'll wager it is related to getting off the drugs. John had some weird things happen when he got off the fentanyl patch. He also had a bad "restless leg syndrome" when he was given Benedryl iv before his 1st Erbitux tx. Drugs [getting on and off] effect people in many ways. Ask your favorite Doc about this and see if there is a solution. You need to sleep. Amy