Why do you think you only lost 1-2lbs? Are you going to the gym? Eating the right things? If that's the case, maybe only getting a little tweak will help. You don't want to over fill it because it sucks a lot when NOTHING goes down. I haven't lost anything in like 3-4 months and they won't give me a fill. SUCKS. I feel like I need one and sometimes I don't. It's annoying.