I try to fix her plate and give it to her, but she will sneak back in for 2nds & 3rds. Here recently I have caught her rambling around in the kitchen after my husband & I have gone to bed looking anything that might taste good to her. If we offer to share a bite of something sweet, she will bite off half of it and hold it in her mouth. I have tried to buy healthy snacks & they will be gone in a day. She is over the top on the growth chart. What can I do?