It's been like three days and I haven't had quite an appetite. I've always been on the thick side and I eat full meals and have my snacks, but lately I've been skipping meals because I'm just not hungry. And when I try to eat, I can only eat like half the meal. I get a sick feeling in my stomach. I'm afraid that it's affecting my health and something may be going on. I'm 14 and I'm only 5'. I've weighed 120 pounds for a while now and I'm already dropping down. It's always been hard for me to lose weight. Any help?