Please help. My boyfriend is switching from pills (I think mostly percocets and oxy) to suboxone tonight. He said he needed to wait until he is experiencing withdrawal symptoms then take suboxone. He is speaking clearly and answering me correctly but his body is jerking uncontrollably. He said he feels like electical shocks are running through his body? Is that normal at this time? He is also getting cold and hot, sneezing, yawning and coughing a bit. Any advice for me to help him through tonight? Also, how long does the jerking last and what should I expect the next week?