Yes I had the same problem for about 3 weeks after I had my surgery which was on Dec 20th 2011. I think it was caused by the blood thinner that I rec'd while I was at the hospital. I have always been a hot natured person until I lost 90lbs a few years ago. I geuss I lost some of my insulation during that time, Lol!!! Really the only way I get cold now is if my feet get cold then the rest of me gets cold. One day recently I was so cold in the house that I had put on my gown, some thick pj pants, some thick socks, house shoes, my thick housecoat, some gloves and my toboggin, and covered up with a blanket on the couch, LOL. My husband thought I was crazy and of course he was hot. I've decided that I hate winter and want to move to a warmer climate.