Hi... My sister is suffering from severe stomach infection since more dan 3 weeks. She is passing watery motions and vomitting along vid severe pain in d stomach. She was hospitalized last week and was under observation for 2 days. The motions r in control now but she is still on liquid diet coz whatever she eats she vomits. Just want to know if she is suffering frm bulimia. Can a gastroenterologist help in dis case ? She is also suffering from Vertigo and High blood sugar.