Stretched Stoma... Revision?

So I went in for an Upper GI Friday to see if there were any structural reasons for me gaining weight and never being full. It took them a few extra tries to get the pics taken - they said that the liquid I was drinking was completely bypassing my pouch - and emptying almost instantly. Great. I lose 108 lbs in 5 months, and now almost 4 years post-op and I've gained 50 lbs of it back. Is there anything that I can do to kick-start the weight loss again? I know I can exercise more, but I'm just always hungry, and never full. Is my situation a revision in the making? I've got an appointment Monday afternoon with my doctor and am curious as to what I should expect or should ask. Thoughts, ideas, suggestions??? Thanks, Chris