Shaydie, let's forget about your eating disorder for a minute. Let's just look at your health. It isn't all that healthy for you to weigh this much at your height. You do need to lose weight. However, there is a vast difference between losing weight the WAY you did when you had an eating disorder and just losing your baby weight in a healthy way.
What struck me when reading your post is that you seem to be the all or nothing type of weight loser. You probably stop eating or something drastic like that. Like people who go off diets and binge eat, not stopping at one cookie, but eating the whole box type of thing (the opposite of stopping eating.)
Neither extreme is healthy. And that doesn't have to be YOU! So stop worrying so much about losing weight. You need to change your eating habits. That doesn't mean to stop eating.
Protein in the morning. Eat 3 egg whites and one egg yolk. Use Pam spray and just a pad of butter to scramble them or make an omelet. Cut up veggies and add (sourthwestern style.) You need milk, so drink the skim. Don't overdrink - find out exactly how much you need for breastfeeding. Fill a jar with 30 ounces of water as soon as you get up in the morning, and drink on it until it's empty before noon. Fill it again and drink on it the rest of the day. In between meals, eat as many veggies as you can to fill you up. Lite string cheese is your friend too - provides you protein (and some calcium). Eat tuna at lunchtime, and a salad. Then a mid afternoon snack. Make dinner BEFORE 7:00 and only a piece of meat the size of your palm - more veggies around it. Figure out how many protein grams you are getting and make sure it works for breastfeeding. You can get those protein grams without eating fattening meats, Shaydie. That will help your caloric intake.
You see, you can still eat and lose weight. If you starve yourself, you hurt yourself. If you eat healthy food and drink plenty of water, the weight will start coming off. Healthy weight loss is 2 pounds a week. You might actually lose more than that the first couple of weeks, but you shouldn't try. Two pounds a week is healthy.
You won't be breastfeeding forever (please say you won't!) and losing weight will get even easier.
Meanwhile, I'm sure you are up and down a lot with these kids. Put the kids in a stroller and right after breakfast, go for a power walk. Exercise will really help you. Take your water bottle along. If you really push the water, you'll have to pee often for the first few days, and then it will level off, so push that water, and then get outside and push that stroller.
Stop feeling guilty about wanting to lose weight. This guilt thing is part of your disorder. For heavens sake, why on earth is there anything wrong with wanting to get back to your pre-pregnancy weight? EVERY woman wants to do that! The difference is that you can't be starving yourself to do it! You don't have to! You can eat, eat, eat and lose weight by eating unprocessed food - vegetables and small portions of lean meats, fish and poultry, low fat cheese snacks, drinking plenty of water, etc. Two fruits a day. No junk. Take a multi-vitamin. No bags of "whatever" from the 7/Eleven. Only unprocessed. You know the difference.
You are young. You can do it. You SHOULD do it. 115 on a 5'1" frame is nice. Even 120 is great. You need to exercise to make your proportions look good after two babies, but I'll bet you can do that.
Now, no more thinking about your eating disorder. Just go in the kitchen and write down a PLAN. Start with getting up out of bed and drinking a glass of water. Write a week's worth of breakfast's. A week's worth of morning snacks. Lunches, afternoon snacks, and dinners. Figure the calories. Figure the protein grams. Make darn sure you are adding tons of veggies in there. Figure out how much fiber is in those veggies too. Don't eat more than 2 servings of whole grains (make any bread or pasta count with making it whole grain, but only 2 of them). Don't eat ANYTHING after 7:00 pm. Even figure out what time you are going to eat everyday and make it stick! If you have the food prepared ahead of time (planning is everything), your life will be so much easier.
And get an hour of walking done during the day.
You can do this. No more bulemia, no more starving. Your life is different now. You are older and more mature. You also HAVE to put into your mind that you don't have to punish yourself anymore by these constant reminders that you used to be sick. No more. Walk away from THAT GIRL. You are a woman now and you know better.
Good luck and let us know how you progress in the coming months.
Dawn