I have a question since you started off heavier than I was, are about at the weight I want to end up at and you appear to have lost weight at a rate of about 10 or so pounds a month, which is right at where I am (I've averaged 11lbs a month for the last 3 months).
Did you ever keep track of how much of a caloric deficit you were creating when doing all of your walking? I keep reading all of these horror stories of losing all your energy and gaining back all of your weight because people have too big of a deficit and lose the weight too quickly. I'm not terribly concerned about muscle loss as long as I am still able to exercise and have energy. I'm not the bodybuilder type and I don't care if I end up with a lean frame at the end of this.
It hasn't been that hard for me to eat about 1,800 calories a day (about what you're eating now) and exercising about 4-5 days a week. Most days I have a 1,000-1,200 deficit every day and that includes me eating 3 meals a day with 2-3 snacks throughout the day.
Some people would say this is too much, but I'm eating a variety of foods, I don't feel hungry throughout the day and I don't feel lethargic. Do you think this sounds like what you went through? Did you have any setbacks?