NEED INFO ABOUT REVISION IN GA

I AM POST RNY 7 YRS AND HAVE STARTED GAINING WEIGHT I BELEIVE MY POUCH HAS STRECHED BUT THE DR. SAID IT LOOKS FINE WELL IF SO WHY AM I REGAINING. I HSVE HD SEVERAL BLEED OUTS AND I THINK WHEN THE OTHER DRS WERE STOPING THE BLEEDING THEY STRECHED MY POUCH BECAUSE AFTER THE LAST REPAIR IS WHEN THE WEIGHT STARTED COMING BACK AND I MEAN FAST