I had knee surgery 3 years ago and started having night sweats all over again. It was gradually decreasing then in October '11 I had back surgery and started having the sweats again. June of this year '12 I had to have back surgery again and now have periods during the day that I can be at work (nursing), at the grocery store or shopping and break out sweating so bad that my whole head is soaking wet. My face is pouring sweat and it is dripping off my face and neck so bad my cloths are soaking wet. It lasts about 15-20 minutes each time. I was wondering if it was the anesthesia or maybe a body's reaction to an invasive surgery. Could this be??View Thread