I have been on 10mg of Byetta for 6+ months and had great hunger surpression for most of it, but only limited weight loss (5-6 lbs.), for most of it. Actually, I still have appetite supression sometimes but other times I feel like I can't get enough to eat but I try to stifle the eating because I want to lose more weight (30-40 lbs.). I have a feeling that the recent "hunger" is because I am writing down everything I eat with calorie counts so that I can track what foods have different effects on my BG level. The only problem with this is whenever I have "dieted" in the past and watched calories, I feel I am on a "diet" and want to eat everything in site! Kind of the "I'm on a diet and can't have that now I'm dying to have it". Usually when I go on a diet I gain a few pounds instead of losing because of this.
I would appreciate any information from any of you who have had good weightloss results with Byetta. I currently excercise 1+/day 5-7 times/week....so I don't want to do any more there! It is hard enough making myself do that! My husband asked me yesterday if I liked riding my bike when I got back from my 1 hour 10 minute ride. My response was "I like sitting on the couch watching TV".... 
which is not good for me!
Anywho....any advice or words of wisdom will be greatly appreciate.
Have a good day!
Margie