I am going into my second month of Withdrawing from mega doses of Oxycontin,Roxicodone,and Kadian.I recently started to have flu like symtoms.My wife said it could be allergies,but I am 35 and have never had any problem with allergies.Is it a part of the withdrawal process.I am on Suboxone but dont think that is the cause,anybody elase having this problem?