kanda

My husband had surgery on the 28th of June. Was doing fine until last Thursday(until this date he was totally satisfied with a fat free Jello or one egg for a meal). He started feeling very hungry, soft foods etc not at all satisfying for him. Today he ate a large avacado with salad shrimp and didn't have any problem with it. He thinks his band has slipped. Will be calling the doctor tomorrow but wanted to get anyone's opinion on this. Thank you for any advice or experiences!