I have been taking 40mg a day of Oxycodone, and Hydrocodone once in awhile.  I have had two complete knee surgerys, having a rough time, I have a low pain level, and still have pain, but I need to get off of these pills.  I have times I get real light headed, or drop off to sleep while someone is talking to me.  Is this passing out?    I don't sleep good at night, about 3 or 4 hours a night.  I wondered if anyone else has felt this while taking these pills, and now cutting back on them.  Thanks