Amy- I feel you about the weight. About 5 years ago I lost from 230 down to my current weight of 145. It was the hardest thing I've done in a long time. My husband is like this crazy ripped, fitness nut. I kept feeling so insecure whenever we went out because I was this huge blob next to this hot guy. Ugh. So I feel you.
Go easy on yourself. You're gonna look fabulous at the wedding, probably sweaty, but fabulous nonetheless. Sorry about your ankle. The heat probably aggravates it, too.