This is not unusual. After a 15 hour surgery, I was so full of all kinds of meds that I thrashed around for 3 days. When I woke up they had tied me to the bed. My plastic surgeon thought that I was doing this on purpose. I have no recollection of any of it! You would think the docs and nurses would see this stuff all the time! I was mortified.
Good news is when I did wake up, there certainly was no pain.
They still kept giving me oxycodone every 4 hours. It took months to get my head screwed back on right.
Just give it time.
Debbie

Partial mandibulectomy and neck dissection 2/3/07. T2NOMO.
Had 14 hour operation which included reconstruction of jaw.
Reconstruction failed. Some radiation, no chemo.