I am on day 4 quitting 10 to 15 hydro's 10/500mg. I have been shivering for days now, in fact I am shivering almost uncontrollably right now. Sleeping has been few and far between. However this evening I was shivering really bad, so I went to wrap up in some cover. I laid across the bed, and the next thing I know I wake up 4hrs later. I have detoxed several times from this drug, but I have never had this symptom. I have had the chills before but never uncontrollable shivers. Also passing out uncontrollably is very odd to me. Usually I drop off to sleep without knowing it when I am on the hydro's. Never when I am off. Have any of you guys had this happen to you? Is this normal when withdrawing? Also how many more days can I expect to be in withdraws? Like I said I have detoxed several times but I have never made it completely to the end. Thanks.