I feel for you, I also broke my ankle late August, had surgury also. You absolutely have to get back out there. I forced myself to stay as active as possible and it was rough especially during the holidays. I ended up gaining 25 pounds. That was very disheartening since I had spent an entire year losing 65 pounds. I am now back to 100% of where I was when I broke my ankle as far as running, riding, and lifting. It was hard getting re-acquainted but definitely worth the effort. I have since lost 17 of those pounds gained. Stay focused and beat yourself up about it until you are back into a routine. Walking in snow, even though it's cold, is an extremely awesome workout, almost like running in sand...the same but different (hehe).