I wish I had some good news. I also wish some of the advice I got from others helped, but nothing has. I still weigh somewhere between 98 and 101 pounds. I've never been heavy, but always used to weight around 120. I'm 5'6" and a 20 lb loss is pretty significant for me. The thing I think that keeps me from losing more weight is that when I'm hungry, I eat. Period. I no longer worry if it is between meals, at meal time, or even 11:00 pm. I know in my heart it is the lack of fat in my diet. I ocassionally eat a hamburger (96% lean), and I have been eating some goat cheese (seems to be a lot easier to digest), and every morning I have oatmeal with Acacia fiber (helps to keep me from getting stopped up).
Anyway, good luck. If you do find anything that works, let me know. I'm still struggling.