Frustrated

I am so frustrated. I was banded on 12/07/09, and the first month I lost a bulk of my weight, 14 lbs. then I would go up and down, on a good day, I've lost 20 lbs. but it is so inconsistent. I have one fill and since that fill, I can feel the restriction and on several occasions I have apparently over eaten, an have a lot of pain and then I vomit, not very much, but after that I feel better. But I just don't know what to do about the pain and the not losing weight. I know the ultimate goal is to eat solid food, but when I started to eat solids is when the weight loss stopped. I am so tempted to go back to the protein shakes w/few carbs. Any suggestions would be helpful.