Hello all. Just a quick question. Has anybody ever had problems getting really tight after flying or travelling to a high altitude? I've experienced this 3 times, but this last time has been very uncomfortable. I even called the manufacturer who told me there has been no such study done on the Lap Band and its relation with altitude, however, my inquirery into this possibility had not been the first time he'd been asked this quesiton. Anyone had this experience? Thanks.