Hello, Thanks for your query. Obesity is risk factor for GERD which is associated with heartburn, throat irritation. If this is the case than use over the counter drugs like esmoprazole and use extra pillow to raise head during sleep, avoid heavy meals and take small frequent meals. Bile vomiting (greenish vomits) is usually associated with Gallbladder surgery, Food allergies,Food poisoning, Gastroenteritis,Intestinal blockage. Some overweight teens have tendency of engaging in extreme weight control behaviors such as self-induced vomiting, the use of diet pills, laxatives, and diuretics, as well as binge eating. Behavioral change, nausea, vomiting and obesity are classical signs of Symptoms of Adrenal gland hyperfunction due to any underlying cause. You should closely watch your childs behavior and sufferings and talk with her about any psychological or social issue and immediately consult a doctor about these issues. If vomiting is serve or frequent please rehydrate her with plenty of fluids and electrolytes. Hope it helps. Take Care!