Aw, hell! My surgery was in December. I froze my ass off for several months. It was awful! Since I've jacked up the exercise and the weather is nice and warm I don't get too cold anymore.
I used to sweat like a pig in a sauna during the warm weather. Yesterday it was 103 and I didn't break a sweat! I gotta love that!
You'll learn very quickly to dress in layers and always have a jacket or a sweater with you when you go out - especially in the evenings!